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Cushion|Natural|GIA

1.31ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 2558438430

Certificate GIA 2558438430

Diamond specifications and retailer prices

From HK$28,364 HKD
As of November 6, 2026
Save HK$18,766 HKD (40%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$47,130 HKD at Steven Stone · As of November 7, 2026
View at Steven Stone

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2558438430. Listed at 8 retailers as of November 6, 2026, with prices from HK$28,364 to HK$47,130, a HK$18,766 spread on the same certified stone. Steven Stone lists it at HK$47,130. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558438430
Dimensions8.15 × 5.49 × 3.59 mm
L/W Ratio1.48
Top View
8.15 mm5.49 mm1.31 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558438430
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.4%

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$28,497 HKD|Low: HK$28,089 HKD|High: HK$47,130 HKD|Avg: HK$33,005 HKD|-7.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Steven Stone
November 7, 2026
Retailer 6HK$28,364 HKD
Retailer 2HK$28,387 HKD
Retailer 1HK$28,497 HKD
Retailer 5HK$34,304 HKD
Retailer 4HK$36,076 HKD
Retailer 7HK$37,580 HKD
Retailer 3HK$38,709 HKD
Steven StoneHK$47,130 HKD

44 data points across 8 retailers

8 retailersHK$28,364 HKD to HK$47,130 HKD

A
Cheapest Retailer
-
HK$28,364 HKD
Final sale: no returns
A
Retailer 2
-
HK$28,387 HKD
View
A
Retailer 3
-
HK$28,497 HKD
View
A
Retailer 4
-
HK$34,304 HKD
View
Retailer 5
-
HK$36,076 HKD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
HK$37,580 HKD
View
Retailer 7
-
HK$38,709 HKD
View
Price last confirmed 7 days ago
Most Expensive
B
Steven Stone
198086379 · Nov 7
HK$47,130 HKD
£4,735 GBP
View
7 more retailers have this diamond
Prices start from HK$28,364 HKDSave up to HK$18,766 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$28,364 HKD