CaratHunter
Plans
Cushion|Natural|GIA

1.31ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 2536811591

Certificate GIA 2536811591

Diamond specifications and retailer prices

From $3,740 SGD
As of November 6, 2026
Save $3,290 SGD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,030 SGD at With Clarity · As of November 6, 2026
View at With Clarity

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536811591. Listed at 8 retailers as of November 6, 2026, with prices from $3,740 to $7,030, a $3,290 spread on the same certified stone. With Clarity lists it at $7,030. 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

1.31
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536811591
Dimensions6.59 × 6.20 × 4.25 mm
L/W Ratio1.06
Top View
6.59 mm6.20 mm1.31 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536811591
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.5%

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: $4,457 SGD|Low: $3,706 SGD|High: $7,030 SGD|Avg: $5,075 SGD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 5, 2026
Retailer 2$3,740 SGD
Retailer 7$4,455 SGD
Retailer 1$4,457 SGD
Retailer 3$4,661 SGD
Retailer 6$4,709 SGD
Retailer 4$5,139 SGD
Retailer 5$5,314 SGD
Retailer 8$5,602 SGD
Retailer 9$5,672 SGD
With Clarity$7,030 SGD

10 data points across 10 retailers

8 retailers$3,740 SGD to $7,030 SGD

A
Cheapest Retailer
-
$3,740 SGD
A
Retailer 2
-
$4,455 SGD
View
A
Retailer 3
-
$4,457 SGD
View
A
Retailer 4
-
$4,661 SGD
View
Final sale: no returns
B+
Retailer 5
-
$4,709 SGD
View
B+
Retailer 6
-
$5,139 SGD
View
B+
Retailer 7
-
$5,314 SGD
View
Most Expensive
B
With Clarity
2536811591 · Nov 6
$7,030 SGD
$5,485 USD
View
7 more retailers have this diamond
Prices start from $3,740 SGDSave up to $3,290 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
1.31ct Cushion
$3,740 SGD