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Cushion|Natural|GIA

1.00ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6435714811

Certificate GIA 6435714811

Diamond specifications and retailer prices

From £1,795 GBP
As of November 6, 2026
Save £1,895 GBP (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,829 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6435714811. Listed at 16 retailers as of November 4, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6435714811
Dimensions5.67 × 5.37 × 3.74 mm
L/W Ratio1.06
Top View
5.67 mm5.37 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6435714811
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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 6
Current: £3,829 GBP|Low: £1,695 GBP|High: £3,843 GBP|Avg: £2,436 GBP|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£1,795 GBP
Retailer 7£1,850 GBP
Retailer 9£1,899 GBP
Retailer 6£1,904 GBP
Retailer 10£2,090 GBP
Retailer 2£2,175 GBP
Retailer 4£2,341 GBP
Retailer 3£2,575 GBP
Retailer 5£3,690 GBP
Queensmith£3,829 GBP

40 data points across 10 retailers

16 retailers£1,795 GBP to £3,690 GBP

B+
Cheapest Retailer
-
£1,795 GBP
B
Retailer 2
-
£1,850 GBP
View
Final sale: no returns
B
Retailer 3
-
£1,899 GBP
View
B
Retailer 4
-
£1,904 GBP
View
Retailer 5
-
£2,004 GBP
View
Price last confirmed 29 days ago
B+
Retailer 6
-
£2,031 GBP
View
B
Retailer 7
-
£2,090 GBP
View
B+
Retailer 8
-
£2,175 GBP
View
B
Retailer 9
-
£2,204 GBP
View
B
Retailer 10
-
£2,204 GBP
View
B
Retailer 11
-
£2,279 GBP
View
B
Retailer 12
-
£2,341 GBP
View
Retailer 13
-
£2,569 GBP
View
Price last confirmed 22 days ago
B
Retailer 14
-
£2,575 GBP
View
B
Retailer 15
-
£3,690 GBP
View
Most Expensive
Queensmith
6435714811 · Oct 28
£3,829 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from £1,795 GBPSave up to £1,895 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+
1.00ct Cushion
£1,795 GBP