The proportions seem alright, medium blue fluorescence can help to negate some possible "yellow" tint of the L colour diamond. To me, neither diamond nor white gold has much resell value, so I will just say buy something that you feel comfortable with and fits your budget.

Alternatively, if you can top up around 10% (approximately RM 3300), you can consider getting a lab-grown diamond from ZCOVA, together with a 14k ring setting. While 14k is not that standard in Malaysia market, it is quite common in counties like US. 14k uses less gold than 18k (58.5% vs 75%), hence cheaper price.


Of course, this is just some quick search from their website, it is best if you can ask them personally and let them know your requirements. Maybe they can help to find a decent diamond that is slightly lower in colour and clarity and fit in into your budget.