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Cushion|Natural|GIA

0.51ct G SI1 Cushion Natural Diamond

ID • G/SI1 • GIA 1568707110

Certificate GIA 1568707110

Diamond specifications and retailer prices

From £511 GBP
As of November 6, 2026
Save £538 GBP (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,049 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter 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 1568707110. Listed at 13 retailers as of November 2, 2026, with prices from £511 to £1,049, a £538 spread on the same certified stone. MOH London lists it at £1,049. 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

0.51
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.3°
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 1568707110
Dimensions5.60 × 4.23 × 2.85 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.60 mm4.23 mm0.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568707110
Side View
Table 64.0%Crown 32.3°Girdle: STK-VTKPavilion 38.2°Culet: NoneDepth 67.5%

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: £1,049 GBP|Low: £511 GBP|High: £1,055 GBP|Avg: £694 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 13£511 GBP
Retailer 3£528 GBP
Retailer 8£573 GBP
Retailer 4£581 GBP
Retailer 12£659 GBP
Retailer 11£672 GBP
Retailer 6£677 GBP
Retailer 2£699 GBP
Retailer 10£702 GBP
Retailer 9£717 GBP
Retailer 5£768 GBP
Retailer 7£884 GBP
MOH London£1,049 GBP

15 data points across 13 retailers

13 retailers£511 GBP to £1,049 GBP

B+
Cheapest Retailer
-
£511 GBP
B+
Retailer 2
-
£528 GBP
View
Final sale: no returns
Retailer 3
-
£573 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£581 GBP
View
B
Retailer 5
-
£659 GBP
View
B
Retailer 6
-
£672 GBP
View
B
Retailer 7
-
£677 GBP
View
B
Retailer 8
-
£699 GBP
View
B
Retailer 9
-
£702 GBP
View
B
Retailer 10
-
£717 GBP
View
B
Retailer 11
-
£768 GBP
View
B
Retailer 12
-
£884 GBP
View
Most Expensive
B
MOH London
0B3CBAB6E · Nov 2
£1,049 GBP
View
12 more retailers have this diamond
Prices start from £511 GBPSave up to £538 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+
0.51ct Cushion
£511 GBP