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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2566395736

Certificate GIA 2566395736

Diamond specifications and retailer prices

From $1,538 USD
SGD 2,078 SGD
As of October 31, 2026
Save $1,435 USD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,973 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566395736. Listed at 10 retailers as of October 26, 2026, with prices from $1,538 to $2,973, a $1,435 spread on the same certified stone. Wholesale Diamonds Direct lists it at $2,973. 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

1.20
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2566395736
Dimensions6.72 × 4.24 × 4.24 mm
L/W Ratio1.58
Culet sizeNone
Top View
6.72 mm4.24 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566395736
Side View
Table 57.0%Crown 36.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.9%

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: $1,970 USD|Low: $1,538 USD|High: $3,089 USD|Avg: $2,250 USD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 31, 2026
Retailer 5$1,538 USD
Retailer 2$1,793 USD
Retailer 7$1,970 USD
Retailer 1$1,970 USD
Retailer 3$1,980 USD
Retailer 8$1,995 USD
Retailer 6$2,337 USD
Retailer 9$2,400 USD
Retailer 4$2,758 USD
Wholesale Diamonds Direct$2,973 USD

34 data points across 10 retailers

10 retailers$1,538 USD to $2,973 USD

A
Cheapest Retailer
-
$1,538 USD
SGD 2,078 SGD
A
Retailer 2
-
$1,793 USD
View
A
Retailer 3
-
$1,970 USD
SGD 2,662 SGD
View
A
Retailer 4
-
$1,970 USD
£1,551 GBP
View
A
Retailer 5
-
$1,980 USD
View
A
Retailer 6
-
$1,995 USD
View
B+
Retailer 7
-
$2,337 USD
View
B+
Retailer 8
-
$2,400 USD
£1,890 GBP
View
B
Retailer 9
-
$2,758 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
571683449 · Oct 26
$2,973 USD
View
9 more retailers have this diamond
Prices start from $1,538 USDSave up to $1,435 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
1.20ct Round
$1,538 USD