CaratHunter
Plans
Cushion|Natural|GIA

1.00ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2546372813

Certificate GIA 2546372813

Diamond specifications and retailer prices

From £1,236 GBP
₹157,775 INR
As of November 2, 2026
Save £2,038 GBP (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,275 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic 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 2546372813. Listed at 15 retailers as of October 28, 2026, with prices from £1,236 to £3,275, a £2,038 spread on the same certified stone. Queensmith lists it at £3,275. 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

1.00
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546372813
Dimensions6.69 × 4.88 × 3.23 mm
L/W Ratio1.37
Top View
6.69 mm4.88 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546372813
Side View
Table 63.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 66.2%

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 2
Current: £3,275 GBP|Low: £1,236 GBP|High: £3,407 GBP|Avg: £1,898 GBP|-3.9%
Queensmith
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
November 2, 2026
Retailer 2£1,236 GBP
Retailer 5£1,423 GBP
Retailer 3£1,451 GBP
Retailer 4£1,474 GBP
Retailer 8£1,504 GBP
Retailer 15£1,542 GBP
Retailer 7£1,612 GBP
Retailer 13£1,612 GBP
Retailer 14£1,645 GBP
Retailer 10£1,692 GBP
Retailer 6£1,817 GBP
Retailer 12£1,895 GBP
Retailer 9£2,106 GBP
Retailer 11£2,701 GBP
Queensmith£3,275 GBP

19 data points across 15 retailers

15 retailers£1,236 GBP to £3,275 GBP

A
Cheapest Retailer
-
£1,236 GBP
₹157,775 INR
A
Retailer 2
-
£1,423 GBP
$1,907 USD
View
Final sale: no returns
A
Retailer 3
-
£1,451 GBP
$1,944 USD
View
B+
Retailer 4
-
£1,474 GBP
$1,975 USD
View
B+
Retailer 5
-
£1,504 GBP
View
B+
Retailer 6
-
£1,542 GBP
$2,066 USD
View
B+
Retailer 7
-
£1,612 GBP
$2,160 USD
View
B+
Retailer 8
-
£1,612 GBP
$2,160 USD
View
B+
Retailer 9
-
£1,645 GBP
$2,204 USD
View
B+
Retailer 10
-
£1,692 GBP
View
B+
Retailer 11
-
£1,817 GBP
$2,435 USD
View
B+
Retailer 12
-
£1,895 GBP
ZAR 41,025 ZAR
View
B+
Retailer 13
-
£2,106 GBP
€2,687 EUR
View
B
Retailer 14
-
£2,701 GBP
View
Most Expensive
B
Queensmith
2546372813 · Oct 28
£3,275 GBP
View
14 more retailers have this diamond
Prices start from £1,236 GBPSave up to £2,038 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
1.00ct Cushion
£1,236 GBP