CaratHunter
Plans
Cushion|Natural|GIA

1.30ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 7566233680

Certificate GIA 7566233680

Diamond specifications and retailer prices

From $2,640 SGD
As of November 6, 2026
Save $1,144 SGD (30%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,785 SGD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7566233680. Listed at 8 retailers as of October 31, 2026, with prices from $2,640 to $3,785, a $1,144 spread on the same certified stone. Blue Nile lists it at $3,785. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.30
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7566233680
Dimensions7.30 × 5.52 × 3.78 mm
L/W Ratio1.32
Top View
7.30 mm5.52 mm1.30 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7566233680
Side View
Table 65.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 68.6%

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: Nov 6
Current: $3,785 SGD|Low: $2,608 SGD|High: $4,051 SGD|Avg: $3,157 SGD|-1.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$2,640 SGD
Retailer 3$2,640 SGD
Retailer 7$2,744 SGD
Retailer 6$3,063 SGD
Retailer 5$3,359 SGD
Retailer 4$3,669 SGD
Blue Nile$3,785 SGD

39 data points across 7 retailers

8 retailers$2,640 SGD to $3,785 SGD

A
Cheapest Retailer
-
$2,640 SGD
A
Retailer 2
-
$2,640 SGD
View
B+
Retailer 3
-
$2,744 SGD
View
Final sale: no returns
B+
Retailer 4
-
$2,984 SGD
View
Retailer 5
-
$3,063 SGD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$3,359 SGD
View
Retailer 7
-
$3,669 SGD
View
Price last confirmed 11 days ago
Most Expensive
B
Blue Nile
30380853 · Oct 31
$3,785 SGD
$2,953 USD
View
7 more retailers have this diamond
Prices start from $2,640 SGDSave up to $1,144 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
1.30ct Cushion
$2,640 SGD