CaratHunter
Plans
Cushion|Natural|GIA

3.03ct G SI1 Cushion Natural Diamond

ID • G/SI1 • GIA 5221990028

Certificate GIA 5221990028

Diamond specifications and retailer prices

From £31,203 GBP
As of November 5, 2026
Save £8,867 GBP (22%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £40,070 GBP at Cape Diamonds · As of November 6, 2026
View at Cape Diamonds

About this 3.03ct natural cushion diamond

This 3.03ct natural cushion sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5221990028. Listed at 5 retailers as of November 5, 2026, with prices from £31,203 to £40,070, a £8,867 spread on the same certified stone. Cape Diamonds lists it at £40,070. 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

3.03
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5221990028
Dimensions8.55 × 8.20 mm
L/W Ratio1.04
Culet sizeSlightly Large
Top View
8.55 mm8.20 mm3.03 ctG / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5221990028
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: SLGDepth 68.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £40,070 GBP|Low: £31,203 GBP|High: £40,348 GBP|Avg: £33,868 GBP|+1.4%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2£31,203 GBP
Retailer 4£32,402 GBP
Retailer 5£32,402 GBP
Retailer 3£33,478 GBP
Cape Diamonds£40,070 GBP

8 data points across 5 retailers

5 retailers£31,203 GBP to £40,070 GBP

B+
Cheapest Retailer
-
£31,203 GBP
B
Retailer 2
-
£32,402 GBP
View
B
Retailer 3
-
£32,402 GBP
View
B
Retailer 4
-
£33,478 GBP
View
Most Expensive
B
Cape Diamonds
cert_5221990028 · Nov 6
£40,070 GBP
ZAR 866,445 ZAR
View
4 more retailers have this diamond
Prices start from £31,203 GBPSave up to £8,867 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.

B+
3.03ct Cushion
£31,203 GBP