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Cushion|Natural|GIA

3.05ct G SI2 Cushion Natural Diamond

ID • G/SI2 • GIA 1232920245

Certificate GIA 1232920245

Diamond specifications and retailer prices

From £20,652 GBP
$27,671 USD
As of November 1, 2026
Save £14,110 GBP (41%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £34,762 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.05ct natural cushion diamond

This 3.05ct natural cushion sits in the three to five carat band, graded G 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 1232920245. Listed at 11 retailers as of November 1, 2026, with prices from £20,652 to £34,762, a £14,110 spread on the same certified stone. MOH London lists it at £34,762. 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

3.05
Carat
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.38°
OriginNatural
Grading LabGIA
CertificateGIA 1232920245
Dimensions10.02 × 7.62 × 5.18 mm
L/W Ratio1.31
Key to symbols
Crystal, Feather, Needle
Top View
10.02 mm7.62 mm3.05 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232920245
Side View
Table 63.0%CrownGirdle: STK-THKPavilion 37.38°Culet: NoneDepth 68.0%

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 1
Current: £34,762 GBP|Low: £20,652 GBP|High: £39,215 GBP|Avg: £27,359 GBP|-10.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5£20,652 GBP
Retailer 6£21,634 GBP
Retailer 9£22,724 GBP
Retailer 8£23,547 GBP
Retailer 7£24,345 GBP
Retailer 10£24,345 GBP
Retailer 2£24,549 GBP
Retailer 11£25,151 GBP
Retailer 3£26,443 GBP
Retailer 4£27,307 GBP
MOH London£34,762 GBP

38 data points across 11 retailers

11 retailers£20,652 GBP to £34,762 GBP

A
Cheapest Retailer
-
£20,652 GBP
$27,671 USD
A
Retailer 2
-
£21,634 GBP
$28,987 USD
View
A
Retailer 3
-
£22,724 GBP
$30,448 USD
View
Final sale: no returns
A
Retailer 4
-
£23,547 GBP
$31,551 USD
View
A
Retailer 5
-
£24,345 GBP
$32,620 USD
View
A
Retailer 6
-
£24,345 GBP
$32,620 USD
View
A
Retailer 7
-
£24,549 GBP
View
B+
Retailer 8
-
£25,151 GBP
$33,700 USD
View
B+
Retailer 9
-
£26,443 GBP
A$54,508 AUD
View
B+
Retailer 10
-
£27,307 GBP
€34,846 EUR
View
Most Expensive
B+
MOH London
E228EB0AD · Nov 1
£34,762 GBP
View
10 more retailers have this diamond
Prices start from £20,652 GBPSave up to £14,110 GBP

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
3.05ct Cushion
£20,652 GBP