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Radiant|Natural|GIA

1.26ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 11

Certificate GIA 11

Diamond specifications and retailer prices

From $3,945 SGD
As of November 4, 2026
Save $1,024 SGD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,969 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.26ct natural radiant diamond

This 1.26ct natural radiant 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 stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 4, 2026, with prices from $3,945 to $4,969, a $1,024 spread on the same certified stone. Blue Nile lists it at $4,969. 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

1.26
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 11
Dimensions7.31 × 5.29 × 3.51 mm
L/W Ratio1.38
Top View
7.31 mm5.29 mm1.26 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 11
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $4,969 SGD|Low: $3,945 SGD|High: $4,969 SGD|Avg: $4,162 SGD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 3$3,945 SGD
Retailer 2$3,977 SGD
Blue Nile$4,969 SGD

2 data points across 3 retailers

3 retailers$3,945 SGD to $4,969 SGD

A
Cheapest Retailer
-
$3,945 SGD
A
Retailer 2
-
$3,977 SGD
View
Most Expensive
B
Blue Nile
20395821 · Nov 5
$4,969 SGD
$3,877 USD
View
2 more retailers have this diamond
Prices start from $3,945 SGDSave up to $1,024 SGD

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
1.26ct Radiant
$3,945 SGD