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Cushion|Natural|GIA

0.90ct I VS1 Cushion Natural Diamond

EX • I/VS1 • GIA 7556156638

Certificate GIA 7556156638

Diamond specifications and retailer prices

From £659 GBP
HK$6,900 HKD
As of November 1, 2026
Save £854 GBP (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,683 GBP at Flawless Fine Jewelry · As of October 23, 2026
View at Flawless Fine Jewelry

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556156638. Listed at 19 retailers as of November 1, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.90
Carat
I
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7556156638
Dimensions5.52 × 5.50 × 3.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
5.52 mm5.50 mm0.90 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7556156638
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.0%

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: £1,683 GBP|Low: £659 GBP|High: £1,717 GBP|Avg: £1,015 GBP|-2.0%
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 13£659 GBP
Retailer 17£690 GBP
Retailer 5£699 GBP
Retailer 12£702 GBP
Retailer 11£779 GBP
Retailer 6£785 GBP
Retailer 16£830 GBP
Retailer 9£869 GBP
Retailer 8£893 GBP
Retailer 14£923 GBP
Retailer 10£941 GBP
Retailer 4£1,153 GBP
Retailer 2£1,157 GBP
Retailer 3£1,233 GBP
Retailer 7£1,371 GBP
Retailer 15£1,513 GBP
Flawless Fine Jewelry£1,683 GBP

24 data points across 17 retailers

19 retailers£659 GBP to £1,513 GBP

A
Cheapest Retailer
-
£659 GBP
HK$6,900 HKD
A
Retailer 2
-
£690 GBP
$925 USD
View
Final sale: no returns
A
Retailer 3
-
£699 GBP
$937 USD
View
A
Retailer 4
-
£702 GBP
$940 USD
View
A
Retailer 5
-
£779 GBP
$1,044 USD
View
A
Retailer 6
-
£785 GBP
$1,052 USD
View
A
Retailer 7
-
£830 GBP
€1,060 EUR
View
A
Retailer 8
-
£869 GBP
$1,165 USD
View
A
Retailer 9
-
£893 GBP
$1,197 USD
View
A
Retailer 10
-
£923 GBP
$1,236 USD
View
A
Retailer 11
-
£941 GBP
View
Retailer 12
-
£1,133 GBP
A$2,336 AUD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
£1,153 GBP
$1,545 USD
View
B+
Retailer 14
-
£1,157 GBP
€1,476 EUR
View
B+
Retailer 15
-
£1,192 GBP
A$2,458 AUD
View
B+
Retailer 16
-
£1,233 GBP
ZAR 26,695 ZAR
View
Retailer 17
-
£1,371 GBP
$1,837 USD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
£1,513 GBP
View
Most Expensive
Flawless Fine Jewelry
3B45A0CC0 · Oct 23
£1,683 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £659 GBPSave up to £854 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
0.90ct Cushion
£659 GBP