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3.12ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6552614190

Certificate GIA 6552614190

Diamond specifications and retailer prices

From $86,025 NZD
$48,484 USD
As of November 1, 2026
Save $10,129 NZD (11%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $96,155 NZD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $96,155 NZD|Low: $55,198 NZD|High: $124,095 NZD|Avg: $76,939 NZD
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$55,198 NZD
Retailer 3$58,995 NZD
Retailer 6$66,919 NZD
Retailer 9$70,853 NZD
Retailer 8$76,820 NZD
Retailer 7$79,776 NZD
Retailer 2$86,025 NZD
Moon Ocean$96,155 NZD
Retailer 5$124,095 NZD

7 data points across 9 retailers

3 retailers$86,025 NZD to $96,155 NZD

Retailer 1
-
$55,198 NZD
$31,110 USD
Price last confirmed 15 days ago
B
Retailer 2
-
$86,025 NZD
$48,484 USD
View
Most Expensive
B
Moon Ocean
NVN-21D5EE5CD-190 · Nov 2
$96,155 NZD
£42,672 GBP
View
2 more retailers have this diamond
Prices start from $86,025 NZDSave up to $10,129 NZD

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
$86,025 NZD