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Round|Natural|GIA

3.12ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7521700205

Certificate GIA 7521700205

Diamond specifications and retailer prices

From $23,677 USD
CA$32,885 CAD
As of October 30, 2026
Save $15,430 USD (39%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $39,107 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7521700205. Listed at 16 retailers as of October 29, 2026, with prices from $23,677 to $39,107, a $15,430 spread on the same certified stone. MOH London lists it at $39,107. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7521700205
Dimensions9.31 × 9.39 × 5.83 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Crystal, Knot, Cloud, Needle, Natural
Top View
9.31 mm9.39 mm3.12 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7521700205
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $39,107 USD|Low: $23,677 USD|High: $40,030 USD|Avg: $28,415 USD|-2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 2$23,677 USD
Retailer 3$23,825 USD
Retailer 9$25,311 USD
Retailer 8$25,375 USD
Retailer 4$25,938 USD
Retailer 10$26,323 USD
Retailer 5$26,750 USD
Retailer 6$26,750 USD
Retailer 12$27,640 USD
Retailer 11$29,361 USD
Retailer 7$29,560 USD
Retailer 13$29,624 USD
Retailer 14$35,285 USD
MOH London$39,107 USD

31 data points across 14 retailers

16 retailers$23,677 USD to $39,107 USD

B+
Cheapest Retailer
-
$23,677 USD
CA$32,885 CAD
B+
Retailer 2
-
$23,825 USD
View
B+
Retailer 3
-
$25,311 USD
View
B+
Retailer 4
-
$25,375 USD
£19,981 GBP
View
B+
Retailer 5
-
$25,938 USD
View
B+
Retailer 6
-
$26,323 USD
View
Retailer 7
-
$26,381 USD
View
Price last confirmed 33 days ago
B+
Retailer 8
-
$26,750 USD
View
B+
Retailer 9
-
$26,750 USD
View
B+
Retailer 10
-
$27,640 USD
View
B+
Retailer 11
-
$27,866 USD
CA$38,703 CAD
View
B
Retailer 12
-
$29,361 USD
View
B
Retailer 13
-
$29,560 USD
€28,152 EUR
View
B
Retailer 14
-
$29,624 USD
View
B
Retailer 15
-
$35,285 USD
View
Most Expensive
B
MOH London
CD8E8B023 · Oct 29
$39,107 USD
£30,793 GBP
View
15 more retailers have this diamond
Prices start from $23,677 USDSave up to $15,430 USD

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
$23,677 USD