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Round|Natural|GIA

3.12ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6552614190

Certificate GIA 6552614190

Diamond specifications and retailer prices

From HK$380,391 HKD
$48,484 USD
As of November 1, 2026
Save HK$44,791 HKD (11%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$425,182 HKD at Moon Ocean · As of November 2, 2026
View at Moon Ocean

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552614190. Listed at 3 retailers as of November 1, 2026, with a relatively tight 12% 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

3.12
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552614190
Dimensions9.25 × 9.31 × 5.80 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
9.25 mm9.31 mm3.12 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6552614190
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°CuletDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$425,182 HKD|Low: HK$244,080 HKD|High: HK$548,728 HKD|Avg: HK$340,212 HKD
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4HK$244,080 HKD
Retailer 3HK$260,867 HKD
Retailer 6HK$295,908 HKD
Retailer 9HK$313,302 HKD
Retailer 8HK$339,687 HKD
Retailer 7HK$352,758 HKD
Retailer 2HK$380,391 HKD
Moon OceanHK$425,182 HKD
Retailer 5HK$548,728 HKD

7 data points across 9 retailers

3 retailersHK$380,391 HKD to HK$425,182 HKD

Retailer 1
-
HK$244,080 HKD
$31,110 USD
Price last confirmed 15 days ago
B
Retailer 2
-
HK$380,391 HKD
$48,484 USD
View
Most Expensive
Moon Ocean
NVN-21D5EE5CD-190 · Nov 2
HK$425,182 HKD
£42,672 GBP
View
2 more retailers have this diamond
Prices start from HK$380,391 HKDSave up to HK$44,791 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.

B
3.12ct Round
HK$380,391 HKD