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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 HK$22,870 HKD
As of November 6, 2026
Save HK$20,119 HKD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$42,988 HKD 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 HK$22,870 to HK$42,988, a HK$20,119 spread on the same certified stone. With Clarity lists it at HK$42,988. 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: HK$27,258 HKD|Low: HK$22,666 HKD|High: HK$42,988 HKD|Avg: HK$31,035 HKD|+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 2HK$22,870 HKD
Retailer 7HK$27,243 HKD
Retailer 1HK$27,258 HKD
Retailer 3HK$28,505 HKD
Retailer 6HK$28,795 HKD
Retailer 4HK$31,428 HKD
Retailer 5HK$32,494 HKD
Retailer 8HK$34,257 HKD
Retailer 9HK$34,688 HKD
With ClarityHK$42,988 HKD

10 data points across 10 retailers

8 retailersHK$22,870 HKD to HK$42,988 HKD

A
Cheapest Retailer
-
HK$22,870 HKD
A
Retailer 2
-
HK$27,243 HKD
View
A
Retailer 3
-
HK$27,258 HKD
View
A
Retailer 4
-
HK$28,505 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$28,795 HKD
View
B+
Retailer 6
-
HK$31,428 HKD
View
B+
Retailer 7
-
HK$32,494 HKD
View
Most Expensive
B
With Clarity
2536811591 · Nov 6
HK$42,988 HKD
$5,485 USD
View
7 more retailers have this diamond
Prices start from HK$22,870 HKDSave up to HK$20,119 HKD

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
HK$22,870 HKD