Round|Natural|GIA

1.23ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2556885249

Certificate GIA 2556885249

Diamond specifications and retailer prices

From $1,564 USD
As of November 5, 2026
Save $1,375 USD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,939 USD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556885249. Listed at 9 retailers as of November 4, 2026, with prices from $1,564 to $2,939, a $1,375 spread on the same certified stone. Wholesale Diamonds Direct lists it at $2,939. 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

1.23
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556885249
Dimensions6.80 × 4.26 × 4.26 mm
L/W Ratio1.60
Culet sizeNone
Top View
6.80 mm4.26 mm1.23 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556885249
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $1,564 USD|Low: $1,556 USD|High: $3,207 USD|Avg: $2,234 USD|-7.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$1,564 USD
Retailer 7$1,700 USD
Retailer 8$1,817 USD
Retailer 3$1,952 USD
Retailer 6$1,955 USD
Retailer 4$2,286 USD
Retailer 5$2,322 USD
Retailer 2$2,509 USD
Wholesale Diamonds Direct$2,939 USD

39 data points across 9 retailers

9 retailers$1,564 USD to $2,939 USD

A
Cheapest Retailer
-
$1,564 USD
A
Retailer 2
-
$1,700 USD
View
A
Retailer 3
-
$1,817 USD
View
A
Retailer 4
-
$1,952 USD
View
A
Retailer 5
-
$1,955 USD
View
B+
Retailer 6
-
$2,286 USD
View
B+
Retailer 7
-
$2,322 USD
View
B+
Retailer 8
-
$2,509 USD
View
Most Expensive
B
Wholesale Diamonds Direct
570868291 · Nov 4
$2,939 USD
View
8 more retailers have this diamond
Prices start from $1,564 USDSave up to $1,375 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
1.23ct Round
$1,564 USD