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1.29ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7566055929

Certificate GIA 7566055929

Diamond specifications and retailer prices

From $2,775 USD
As of November 1, 2026
Save $2,875 USD (51%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,650 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.29ct natural round diamond

This 1.29ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7566055929. Listed at 7 retailers as of October 26, 2026, with prices from $2,775 to $5,650, a $2,875 spread on the same certified stone. MOH London lists it at $5,650. 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

1.29
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7566055929
Dimensions6.95 × 6.96 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
6.95 mm6.96 mm1.29 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566055929
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,650 USD|Low: $2,775 USD|High: $5,673 USD|Avg: $3,749 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$2,775 USD
Retailer 6$2,878 USD
Retailer 2$3,476 USD
Retailer 7$3,723 USD
Retailer 4$3,914 USD
Retailer 3$3,932 USD
MOH London$5,650 USD

18 data points across 7 retailers

7 retailers$2,775 USD to $5,650 USD

B+
Cheapest Retailer
-
$2,775 USD
B+
Retailer 2
-
$2,878 USD
View
B+
Retailer 3
-
$3,476 USD
£2,737 GBP
View
B
Retailer 4
-
$3,523 USD
View
B
Retailer 5
-
$3,723 USD
View
B+
Retailer 6
-
$3,932 USD
€3,745 EUR
View
Most Expensive
B
MOH London
A73F19F67 · Oct 26
$5,650 USD
£4,449 GBP
View
6 more retailers have this diamond
Prices start from $2,775 USDSave up to $2,875 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+
1.29ct Round
$2,775 USD