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Round|Natural|GIA

5.12ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2141664120

Certificate GIA 2141664120

Diamond specifications and retailer prices

From €51,381 EUR
$57,403 USD
As of October 31, 2026
Save €41,862 EUR (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €93,243 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 5.12ct natural round diamond

This 5.12ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2141664120. Listed at 17 retailers as of October 31, 2026, with prices from €51,381 to €93,243, a €41,862 spread on the same certified stone. MOH London lists it at €93,243. 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

5.12
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2141664120
Dimensions11.01 × 10.97 × 6.87 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Culet sizeNone
Top View
11.01 mm10.97 mm5.12 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2141664120
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €93,243 EUR|Low: €50,555 EUR|High: €94,367 EUR|Avg: €62,829 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5€50,555 EUR
Retailer 2€53,571 EUR
Retailer 7€54,106 EUR
Retailer 6€54,728 EUR
Retailer 3€58,862 EUR
Retailer 4€72,442 EUR
MOH London€93,243 EUR

37 data points across 7 retailers

17 retailers€51,381 EUR to €93,243 EUR

A
Cheapest Retailer
-
€51,381 EUR
$57,403 USD
A
Retailer 2
-
€53,571 EUR
₹5,699,957 INR
View
B+
Retailer 3
-
€53,614 EUR
$59,898 USD
View
B+
Retailer 4
-
€54,728 EUR
$61,142 USD
View
Final sale: no returns
B+
Retailer 5
-
€58,862 EUR
£51,780 GBP
View
B+
Retailer 6
-
€59,704 EUR
$66,702 USD
View
B+
Retailer 7
-
€61,690 EUR
$68,920 USD
View
B+
Retailer 8
-
€61,690 EUR
$68,920 USD
View
B+
Retailer 9
-
€62,192 EUR
$69,481 USD
View
B+
Retailer 10
-
€62,192 EUR
$69,481 USD
View
B+
Retailer 11
-
€63,748 EUR
$71,220 USD
View
B+
Retailer 12
-
€63,872 EUR
$71,358 USD
View
B+
Retailer 13
-
€64,679 EUR
$72,260 USD
View
B
Retailer 14
-
€66,386 EUR
$74,166 USD
View
B
Retailer 15
-
€67,167 EUR
$75,039 USD
View
B
Retailer 16
-
€72,442 EUR
View
Most Expensive
B
MOH London
F9632DC7C · Nov 1
€93,243 EUR
£82,025 GBP
View
16 more retailers have this diamond
Prices start from €51,381 EURSave up to €41,862 EUR

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
5.12ct Round
€51,381 EUR