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Cushion|Natural|GIA

5.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 2155985269

Certificate GIA 2155985269

Diamond specifications and retailer prices

From £30,897 GBP
A$63,689 AUD
As of October 31, 2026
Save £4,507 GBP (13%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £35,403 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 5ct natural cushion diamond

This 5ct natural cushion sits in the over five carat band, graded I 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 2155985269. Listed at 2 retailers as of October 31, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

5.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2155985269
Dimensions9.92 × 9.59 × 6.60 mm
L/W Ratio1.03
Top View
9.92 mm9.59 mm5.00 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2155985269
Side View
Table 69.0%CrownGirdlePavilionCuletDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £35,403 GBP|Low: £34,894 GBP|High: £35,747 GBP|Avg: £35,440 GBP|+0.9%
November 1, 2026
77 Diamonds£35,403 GBP

39 data points across 1 retailer

2 retailers£30,897 GBP to £35,403 GBP

B+
Cheapest Retailer
-
£30,897 GBP
A$63,689 AUD
Most Expensive
B+
77 Diamonds
CUSMBQHGM56YM · Nov 1
£35,403 GBP
View
1 more retailer has this diamond
Prices start from £30,897 GBPSave up to £4,507 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+
5.00ct Cushion
£30,897 GBP