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Cushion|Natural|GIA

0.80ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2556153957

Certificate GIA 2556153957

Diamond specifications and retailer prices

From £588 GBP
HK$6,100 HKD
As of October 29, 2026
Save £1,510 GBP (72%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,098 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.8ct natural cushion diamond

This 0.8ct natural cushion sits in the just-under-one-carat band, graded H 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 2556153957. Listed at 17 retailers as of October 28, 2026, with prices from £588 to £2,098, a £1,510 spread on the same certified stone. Queensmith lists it at £2,098. 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556153957
Dimensions7.26 × 4.61 × 3.12 mm
L/W Ratio1.57
Top View
7.26 mm4.61 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556153957
Side View
Table 62.0%CrownGirdle: VTN-XTKPavilionCulet: NoneDepth 67.7%

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 29
Current: £2,098 GBP|Low: £588 GBP|High: £2,103 GBP|Avg: £1,042 GBP|+3.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 11£588 GBP
Retailer 4£700 GBP
Retailer 9£738 GBP
Retailer 3£768 GBP
Retailer 5£800 GBP
Retailer 2£941 GBP
Retailer 10£1,046 GBP
Retailer 6£1,120 GBP
Retailer 7£1,180 GBP
Retailer 8£1,467 GBP
Queensmith£2,098 GBP

31 data points across 11 retailers

17 retailers£588 GBP to £2,098 GBP

A
Cheapest Retailer
-
£588 GBP
HK$6,100 HKD
A
Retailer 2
-
£700 GBP
₹88,613 INR
View
B+
Retailer 3
-
£738 GBP
$980 USD
View
Final sale: no returns
A
Retailer 4
-
£766 GBP
$1,018 USD
View
A
Retailer 5
-
£768 GBP
$1,020 USD
View
A
Retailer 6
-
£800 GBP
$1,063 USD
View
A
Retailer 7
-
£828 GBP
SGD 1,486 SGD
View
B+
Retailer 8
-
£901 GBP
$1,197 USD
View
B+
Retailer 9
-
£941 GBP
View
B+
Retailer 10
-
£970 GBP
$1,289 USD
View
B+
Retailer 11
-
£1,030 GBP
$1,369 USD
View
B+
Retailer 12
-
£1,046 GBP
A$2,138 AUD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
£1,120 GBP
€1,417 EUR
View
B+
Retailer 14
-
£1,180 GBP
ZAR 25,334 ZAR
View
B+
Retailer 15
-
£1,230 GBP
$1,635 USD
View
B+
Retailer 16
-
£1,467 GBP
View
Most Expensive
B
Queensmith
2556153957 · Oct 28
£2,098 GBP
View
16 more retailers have this diamond
Prices start from £588 GBPSave up to £1,510 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
0.80ct Cushion
£588 GBP