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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

ID • G/SI1 • GIA 1565218767

Certificate GIA 1565218767

Diamond specifications and retailer prices

From £897 GBP
As of November 6, 2026
Save £1,202 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,099 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded G 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 1565218767. Listed at 18 retailers as of November 4, 2026, with prices from £897 to £2,099, a £1,202 spread on the same certified stone. MOH London lists it at £2,099. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565218767
Dimensions6.80 × 5.07 × 3.50 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Needle, Natural
Top View
6.80 mm5.07 mm1.00 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565218767
Side View
Table 55.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 69.1%

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 6
Current: £2,099 GBP|Low: £897 GBP|High: £2,116 GBP|Avg: £1,310 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 5£897 GBP
Retailer 11£1,027 GBP
Retailer 4£1,044 GBP
Retailer 12£1,137 GBP
Retailer 6£1,165 GBP
Retailer 2£1,188 GBP
Retailer 3£1,196 GBP
Retailer 8£1,332 GBP
Retailer 10£1,340 GBP
Retailer 9£1,466 GBP
Retailer 7£1,632 GBP
MOH London£2,099 GBP

22 data points across 12 retailers

18 retailers£897 GBP to £2,099 GBP

A
Cheapest Retailer
-
£897 GBP
A
Retailer 2
-
£1,027 GBP
View
A
Retailer 3
-
£1,044 GBP
View
A
Retailer 4
-
£1,075 GBP
View
A
Retailer 5
-
£1,109 GBP
View
Final sale: no returns
A
Retailer 6
-
£1,137 GBP
View
A
Retailer 7
-
£1,165 GBP
View
A
Retailer 8
-
£1,188 GBP
View
A
Retailer 9
-
£1,196 GBP
View
Retailer 10
-
£1,201 GBP
View
Price last confirmed 30 days ago
A
Retailer 11
-
£1,259 GBP
View
A
Retailer 12
-
£1,303 GBP
View
A
Retailer 13
-
£1,332 GBP
View
A
Retailer 14
-
£1,340 GBP
View
A
Retailer 15
-
£1,466 GBP
View
Retailer 16
-
£1,624 GBP
View
Price last confirmed 33 days ago
B+
Retailer 17
-
£1,632 GBP
View
Most Expensive
B+
MOH London
DCBAC214F · Nov 4
£2,099 GBP
View
17 more retailers have this diamond
Prices start from £897 GBPSave up to £1,202 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
£897 GBP