CaratHunter
Plans
Cushion|Natural|GIA

0.31ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6552406161

Certificate GIA 6552406161

Diamond specifications and retailer prices

From €405 EUR
SGD 614 SGD
As of October 31, 2026
Save €586 EUR (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €991 EUR at Queensmith · As of October 28, 2026
View at Queensmith

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 6552406161. Listed at 11 retailers as of October 28, 2026, with prices from €405 to €991, a €586 spread on the same certified stone. Queensmith lists it at €991. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552406161
Dimensions3.85 × 3.86 × 2.57 mm
L/W Ratio1.00
Top View
3.85 mm3.86 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552406161
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 66.7%

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: Oct 31
Current: €991 EUR|Low: €405 EUR|High: €1,020 EUR|Avg: €657 EUR|-1.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 8€405 EUR
Retailer 2€510 EUR
Retailer 7€526 EUR
Retailer 10€561 EUR
Retailer 9€564 EUR
Retailer 11€580 EUR
Retailer 5€620 EUR
Retailer 6€635 EUR
Retailer 3€699 EUR
Retailer 4€945 EUR
Queensmith€991 EUR

37 data points across 11 retailers

11 retailers€405 EUR to €991 EUR

A
Cheapest Retailer
-
€405 EUR
SGD 614 SGD
B+
Retailer 2
-
€510 EUR
£450 GBP
View
B+
Retailer 3
-
€526 EUR
$590 USD
View
B+
Retailer 4
-
€561 EUR
£496 GBP
View
B+
Retailer 5
-
€564 EUR
$633 USD
View
B+
Retailer 6
-
€580 EUR
$650 USD
View
B
Retailer 7
-
€620 EUR
View
B
Retailer 8
-
€635 EUR
ZAR 11,502 ZAR
View
Retailer 9
-
€699 EUR
A$1,206 AUD
View
Price last confirmed 29 days ago
B
Retailer 10
-
€945 EUR
£835 GBP
View
Most Expensive
B
Queensmith
6552406161 · Oct 28
€991 EUR
£875 GBP
View
10 more retailers have this diamond
Prices start from €405 EURSave up to €586 EUR

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
€405 EUR