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Cushion|Natural|GIA

1.31ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1545944738

Certificate GIA 1545944738

Diamond specifications and retailer prices

From $4,380 USD
As of November 6, 2026
Save $4,374 USD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,754 USD at MOH London · As of November 4, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545944738. Listed at 18 retailers as of November 4, 2026, with prices from $4,380 to $8,754, a $4,374 spread on the same certified stone. MOH London lists it at $8,754. 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

1.31
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.89°
OriginNatural
Grading LabGIA
CertificateGIA 1545944738
Dimensions7.12 × 5.60 × 3.91 mm
L/W Ratio1.27
Key to symbols
Crystal, Feather, Needle
Top View
7.12 mm5.60 mm1.31 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545944738
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 35.89°Culet: NoneDepth 69.8%

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: $8,754 USD|Low: $4,317 USD|High: $8,884 USD|Avg: $6,083 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5$4,380 USD
Retailer 3$4,982 USD
Retailer 9$5,198 USD
Retailer 8$5,398 USD
Retailer 6$5,755 USD
Retailer 11$5,765 USD
Retailer 4$5,967 USD
Retailer 10$6,150 USD
Retailer 12$6,150 USD
Retailer 13$6,360 USD
Retailer 2$6,473 USD
Retailer 7$7,269 USD
MOH London$8,754 USD

45 data points across 13 retailers

18 retailers$4,380 USD to $8,754 USD

A
Cheapest Retailer
-
$4,380 USD
B+
Retailer 2
-
$4,707 USD
View
B+
Retailer 3
-
$4,709 USD
View
B+
Retailer 4
-
$4,767 USD
View
B+
Retailer 5
-
$4,982 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,060 USD
View
B+
Retailer 7
-
$5,198 USD
View
Retailer 8
-
$5,398 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$5,755 USD
View
B
Retailer 10
-
$5,765 USD
View
Retailer 11
-
$5,967 USD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
$6,150 USD
View
B+
Retailer 13
-
$6,150 USD
View
B
Retailer 14
-
$6,360 USD
View
B+
Retailer 15
-
$6,473 USD
View
Retailer 16
-
$6,571 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$7,269 USD
View
Most Expensive
B
MOH London
23ED74DE8 · Nov 4
$8,754 USD
£6,893 GBP
View
17 more retailers have this diamond
Prices start from $4,380 USDSave up to $4,374 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
$4,380 USD