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Cushion|Natural|GIA

1.31ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 2536811591

Certificate GIA 2536811591

Diamond specifications and retailer prices

From $2,918 USD
As of November 6, 2026
Save $2,567 USD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,485 USD 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 $2,918 to $5,485, a $2,567 spread on the same certified stone. With Clarity lists it at $5,485. 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
Color
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: $3,478 USD|Low: $2,892 USD|High: $5,485 USD|Avg: $3,960 USD|+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$2,918 USD
Retailer 7$3,476 USD
Retailer 1$3,478 USD
Retailer 3$3,637 USD
Retailer 6$3,674 USD
Retailer 4$4,010 USD
Retailer 5$4,146 USD
Retailer 8$4,371 USD
Retailer 9$4,426 USD
With Clarity$5,485 USD

10 data points across 10 retailers

8 retailers$2,918 USD to $5,485 USD

A
Cheapest Retailer
-
$2,918 USD
A
Retailer 2
-
$3,476 USD
View
A
Retailer 3
-
$3,478 USD
View
A
Retailer 4
-
$3,637 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,674 USD
View
B+
Retailer 6
-
$4,010 USD
View
B+
Retailer 7
-
$4,146 USD
View
Most Expensive
B
With Clarity
2536811591 · Nov 6
$5,485 USD
View
7 more retailers have this diamond
Prices start from $2,918 USDSave up to $2,567 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.

A
1.31ct Cushion
$2,918 USD