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Cushion|Natural|GIA

1.30ct J SI2 Cushion Natural Diamond

J/SI2 • GIA 3565400574

Certificate GIA 3565400574

Diamond specifications and retailer prices

From $2,635 SGD
HK$16,100 HKD
As of November 1, 2026
Save $1,150 SGD (30%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,784 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 SI2 clarity (slightly-included) and certified by GIA 3565400574. Listed at 7 retailers as of October 31, 2026, with prices from $2,635 to $3,784, a $1,150 spread on the same certified stone. Blue Nile lists it at $3,784. 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
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3565400574
Dimensions7.92 × 5.59 × 3.69 mm
L/W Ratio1.42
Top View
7.92 mm5.59 mm1.30 ctJ / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565400574
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.1%

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 1
Current: $3,784 SGD|Low: $2,618 SGD|High: $3,944 SGD|Avg: $3,160 SGD|-1.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3$2,635 SGD
Retailer 2$2,662 SGD
Retailer 5$2,807 SGD
Retailer 7$3,068 SGD
Retailer 8$3,196 SGD
Retailer 6$3,356 SGD
Retailer 4$3,669 SGD
Blue Nile$3,784 SGD

30 data points across 8 retailers

7 retailers$2,635 SGD to $3,784 SGD

A
Cheapest Retailer
-
$2,635 SGD
HK$16,100 HKD
A
Retailer 2
-
$2,662 SGD
₹198,280 INR
View
B+
Retailer 3
-
$2,807 SGD
$2,196 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,068 SGD
$2,400 USD
View
B+
Retailer 5
-
$3,356 SGD
$2,625 USD
View
B
Retailer 6
-
$3,669 SGD
View
Most Expensive
B
Blue Nile
30380811 · Oct 31
$3,784 SGD
$2,960 USD
View
6 more retailers have this diamond
Prices start from $2,635 SGDSave up to $1,150 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
$2,635 SGD