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Cushion|Natural|GIA

0.90ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2427371288

Certificate GIA 2427371288

Diamond specifications and retailer prices

From £1,317 GBP
$1,764 USD
As of November 2, 2026
Save £1,890 GBP (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,206 GBP at Moon Ocean · As of November 1, 2026
View at Moon Ocean

About this 0.9ct natural cushion diamond

This 0.9ct 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 2427371288. Listed at 22 retailers as of November 1, 2026, with prices from £1,317 to £3,206, a £1,890 spread on the same certified stone. Moon Ocean lists it at £3,206. 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

0.90
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2427371288
Dimensions6.38 × 4.91 × 3.25 mm
L/W Ratio1.30
Top View
6.38 mm4.91 mm0.90 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2427371288
Side View
Table 64.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 66.2%

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 2
Current: £3,206 GBP|Low: £1,317 GBP|High: £3,225 GBP|Avg: £1,820 GBP|-0.5%
Moon Ocean
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
Retailer 18
Retailer 19
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Retailer 21
November 2, 2026
Retailer 12£1,317 GBP
Retailer 9£1,346 GBP
Retailer 4£1,364 GBP
Retailer 11£1,368 GBP
Retailer 15£1,381 GBP
Retailer 7£1,420 GBP
Retailer 19£1,534 GBP
Retailer 13£1,652 GBP
Retailer 20£1,658 GBP
Retailer 6£1,741 GBP
Retailer 3£1,754 GBP
Retailer 21£1,754 GBP
Retailer 2£1,813 GBP
Retailer 5£1,814 GBP
Retailer 14£1,905 GBP
Retailer 8£2,013 GBP
Retailer 18£2,124 GBP
Retailer 10£2,394 GBP
Retailer 17£2,458 GBP
Retailer 16£2,919 GBP
Moon Ocean£3,206 GBP

42 data points across 21 retailers

22 retailers£1,317 GBP to £3,206 GBP

B+
Cheapest Retailer
-
£1,317 GBP
$1,764 USD
Final sale: no returns
B+
Retailer 2
-
£1,346 GBP
$1,803 USD
View
B+
Retailer 3
-
£1,364 GBP
$1,827 USD
View
B+
Retailer 4
-
£1,368 GBP
$1,833 USD
View
B+
Retailer 5
-
£1,381 GBP
$1,850 USD
View
B+
Retailer 6
-
£1,420 GBP
$1,903 USD
View
B+
Retailer 7
-
£1,534 GBP
$2,055 USD
View
B
Retailer 8
-
£1,652 GBP
$2,213 USD
View
B
Retailer 9
-
£1,658 GBP
$2,222 USD
View
B
Retailer 10
-
£1,741 GBP
$2,333 USD
View
B
Retailer 11
-
£1,754 GBP
$2,350 USD
View
B
Retailer 12
-
£1,754 GBP
$2,350 USD
View
B
Retailer 13
-
£1,813 GBP
View
B
Retailer 14
-
£1,814 GBP
$2,430 USD
View
B
Retailer 15
-
£1,905 GBP
$2,552 USD
View
B
Retailer 16
-
£1,920 GBP
CA$3,573 CAD
View
B
Retailer 17
-
£2,013 GBP
$2,697 USD
View
B
Retailer 18
-
£2,124 GBP
€2,710 EUR
View
B
Retailer 19
-
£2,394 GBP
$3,208 USD
View
B
Retailer 20
-
£2,458 GBP
ZAR 53,197 ZAR
View
B
Retailer 21
-
£2,919 GBP
View
Most Expensive
B
Moon Ocean
NVN-995D74AD5-288 · Nov 1
£3,206 GBP
View
21 more retailers have this diamond
Prices start from £1,317 GBPSave up to £1,890 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+
0.90ct Cushion
£1,317 GBP