Round|Natural|GIA

5.12ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2141664120

Certificate GIA 2141664120

Diamond specifications and retailer prices

From $57,403 USD
As of October 31, 2026
Save $46,769 USD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $104,172 USD 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 $57,403 to $104,172, a $46,769 spread on the same certified stone. MOH London lists it at $104,172. 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: $104,172 USD|Low: $56,480 USD|High: $105,428 USD|Avg: $70,021 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$56,480 USD
Retailer 3$59,863 USD
Retailer 7$60,448 USD
Retailer 6$61,142 USD
Retailer 2$65,760 USD
Retailer 4$80,933 USD
MOH London$104,172 USD

38 data points across 7 retailers

17 retailers$57,403 USD to $104,172 USD

A
Cheapest Retailer
-
$57,403 USD
A
Retailer 2
-
$59,863 USD
₹5,701,191 INR
View
B+
Retailer 3
-
$59,898 USD
View
B+
Retailer 4
-
$61,142 USD
View
Final sale: no returns
B+
Retailer 5
-
$65,760 USD
£51,780 GBP
View
B+
Retailer 6
-
$66,702 USD
View
B+
Retailer 7
-
$68,920 USD
View
B+
Retailer 8
-
$68,920 USD
View
B+
Retailer 9
-
$69,481 USD
View
B+
Retailer 10
-
$69,481 USD
View
B+
Retailer 11
-
$71,220 USD
View
B+
Retailer 12
-
$71,358 USD
View
B+
Retailer 13
-
$72,260 USD
View
B
Retailer 14
-
$74,166 USD
View
B
Retailer 15
-
$75,039 USD
View
B
Retailer 16
-
$80,933 USD
€77,079 EUR
View
Most Expensive
B
MOH London
F9632DC7C · Nov 1
$104,172 USD
£82,025 GBP
View
16 more retailers have this diamond
Prices start from $57,403 USDSave up to $46,769 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.

A
5.12ct Round
$57,403 USD