Round|Natural|GIA

1.25ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1232557961

Certificate GIA 1232557961

Diamond specifications and retailer prices

From $2,773 USD
As of October 26, 2026
Save $2,654 USD (49%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,427 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1232557961. Listed at 9 retailers as of October 26, 2026, with prices from $2,773 to $5,427, a $2,654 spread on the same certified stone. MOH London lists it at $5,427. 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

1.25
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1232557961
Dimensions6.89 × 6.91 × 4.30 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.89 mm6.91 mm1.25 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232557961
Side View
Table 56.0%Crown 35°Girdle: MediumPavilion 41°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 26
Current: $5,427 USD|Low: $2,730 USD|High: $5,485 USD|Avg: $3,684 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 8$2,773 USD
Retailer 6$2,866 USD
Retailer 4$3,020 USD
Retailer 7$3,020 USD
Retailer 5$3,120 USD
Retailer 2$3,345 USD
Retailer 9$3,759 USD
Retailer 3$3,773 USD
MOH London$5,427 USD

26 data points across 9 retailers

9 retailers$2,773 USD to $5,427 USD

B+
Cheapest Retailer
-
$2,773 USD
B+
Retailer 2
-
$2,866 USD
View
B+
Retailer 3
-
$3,020 USD
View
B+
Retailer 4
-
$3,020 USD
View
B+
Retailer 5
-
$3,120 USD
View
B
Retailer 6
-
$3,345 USD
£2,634 GBP
View
Retailer 7
-
$3,759 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$3,773 USD
€3,593 EUR
View
Most Expensive
B
MOH London
27676609F · Oct 26
$5,427 USD
£4,273 GBP
View
8 more retailers have this diamond
Prices start from $2,773 USDSave up to $2,654 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+
1.25ct Round
$2,773 USD