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Marquise|Natural|GIA

3.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1538614472

Certificate GIA 1538614472

Diamond specifications and retailer prices

From HK$379,577 HKD
A$74,431 AUD
As of October 30, 2026
Save HK$10,174 HKD (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$389,751 HKD at William & Sons Jewelers · As of October 30, 2026
View at William & Sons Jewelers

About this 3.5ct natural marquise diamond

This 3.5ct natural marquise sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1538614472. Listed at 2 retailers as of October 30, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.50
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle40.5°
OriginNatural
Grading LabGIA
CertificateGIA 1538614472
Dimensions15.23 × 7.84 × 4.97 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
15.23 mm7.84 mm3.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1538614472
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 40.5°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$465,529 HKD|Low: HK$354,320 HKD|High: HK$467,127 HKD|Avg: HK$425,534 HKD|+1.9%
Retailer 1
Retailer 2
William & Sons Jewelers
October 18, 2026
William & Sons JewelersHK$389,751 HKD
Retailer 2HK$437,876 HKD
Retailer 1HK$465,529 HKD

12 data points across 3 retailers

2 retailersHK$379,577 HKD to HK$389,751 HKD

A
Cheapest Retailer
-
HK$379,577 HKD
A$74,431 AUD
Most Expensive
B+
William & Sons Jewelers
cert_1538614472 · Oct 30
HK$389,751 HKD
$49,677 USD
View
Final sale: no returns
1 more retailer has this diamond
Prices start from HK$379,577 HKDSave up to HK$10,174 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.50ct Marquise
HK$379,577 HKD