CaratHunter
Plans
Cushion|Natural|GIA

1.31ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6551312937

Certificate GIA 6551312937

Diamond specifications and retailer prices

From $2,598 USD
HK$20,300 HKD
As of November 2, 2026
Save $4,120 USD (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,718 USD at Queensmith · As of October 28, 2026
View at Queensmith

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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551312937. Listed at 14 retailers as of October 28, 2026, with prices from $2,598 to $6,718, a $4,120 spread on the same certified stone. Queensmith lists it at $6,718. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551312937
Dimensions7.54 × 5.61 × 3.79 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
7.54 mm5.61 mm1.31 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551312937
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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 2
Current: $6,718 USD|Low: $2,598 USD|High: $6,737 USD|Avg: $3,879 USD|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 8$2,598 USD
Retailer 7$2,720 USD
Retailer 12$3,071 USD
Retailer 11$3,186 USD
Retailer 3$3,482 USD
Retailer 10$3,596 USD
Retailer 2$3,607 USD
Retailer 4$3,651 USD
Retailer 6$3,670 USD
Retailer 9$4,039 USD
Retailer 5$5,772 USD
Queensmith$6,718 USD

30 data points across 12 retailers

14 retailers$2,598 USD to $6,718 USD

A
Cheapest Retailer
-
$2,598 USD
HK$20,300 HKD
A
Retailer 2
-
$2,720 USD
₹259,066 INR
View
A
Retailer 3
-
$3,071 USD
SGD 4,150 SGD
View
B+
Retailer 4
-
$3,186 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,250 USD
View
B+
Retailer 6
-
$3,444 USD
A$5,298 AUD
View
Retailer 7
-
$3,482 USD
View
Price last confirmed 18 days ago
B+
Retailer 8
-
$3,596 USD
View
B+
Retailer 9
-
$3,607 USD
£2,840 GBP
View
B+
Retailer 10
-
$3,651 USD
SGD 4,934 SGD
View
B+
Retailer 11
-
$3,670 USD
View
B
Retailer 12
-
$4,039 USD
€3,847 EUR
View
B
Retailer 13
-
$5,772 USD
£4,545 GBP
View
Most Expensive
B
Queensmith
6551312937 · Oct 28
$6,718 USD
£5,290 GBP
View
13 more retailers have this diamond
Prices start from $2,598 USDSave up to $4,120 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
$2,598 USD