Cushion|Natural|GIA

0.31ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6552118613

Certificate GIA 6552118613

Diamond specifications and retailer prices

From $425 USD
As of October 29, 2026
Save $487 USD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $912 USD at MOH London · As of November 2, 2026
View at MOH London

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded F 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 6552118613. Listed at 12 retailers as of October 29, 2026, with prices from $425 to $912, a $487 spread on the same certified stone. MOH London lists it at $912. 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

0.31
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552118613
Dimensions5.24 × 3.42 × 2.30 mm
L/W Ratio1.53
Top View
5.24 mm3.42 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6552118613
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $912 USD|Low: $425 USD|High: $922 USD|Avg: $662 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 7$425 USD
Retailer 2$516 USD
Retailer 6$541 USD
Retailer 5$612 USD
Retailer 8$632 USD
Retailer 4$717 USD
Retailer 3$799 USD
MOH London$912 USD

39 data points across 8 retailers

12 retailers$425 USD to $912 USD

Retailer 1
-
$414 USD
SGD 560 SGD
Price last confirmed 7 days ago
A
Retailer 2
-
$425 USD
View
B+
Retailer 3
-
$455 USD
View
B+
Retailer 4
-
$516 USD
£406 GBP
View
B+
Retailer 5
-
$525 USD
View
B+
Retailer 6
-
$534 USD
View
B+
Retailer 7
-
$541 USD
£426 GBP
View
B+
Retailer 8
-
$612 USD
ZAR 9,884 ZAR
View
Retailer 9
-
$632 USD
A$972 AUD
View
Price last confirmed 30 days ago
B
Retailer 10
-
$717 USD
€683 EUR
View
B
Retailer 11
-
$799 USD
£629 GBP
View
Most Expensive
B
MOH London
28A45359A · Nov 2
$912 USD
£718 GBP
View
11 more retailers have this diamond
Prices start from $425 USDSave up to $487 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
0.31ct Cushion
$425 USD