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Cushion|Natural|GIA

0.57ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 2507507689

Certificate GIA 2507507689

Diamond specifications and retailer prices

From £657 GBP
$881 USD
As of October 26, 2026
Save £110 GBP (14%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £768 GBP at Fonder Diamond · As of October 31, 2026
View at Fonder Diamond

About this 0.57ct natural cushion diamond

This 0.57ct natural cushion sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507507689. Listed at 2 retailers as of October 26, 2026, with prices from £657 to £768, a £110 spread on the same certified stone. Fonder Diamond lists it at £768. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.57
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2507507689
Dimensions4.55 × 7.83 × 2.72 mm
L/W Ratio1.72
Top View
4.55 mm7.83 mm0.57 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2507507689
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 26
Current: £768 GBP|Low: £528 GBP|High: £773 GBP|Avg: £652 GBP|-0.4%
Fonder Diamond
Retailer 2
Retailer 3
October 13, 2026
Retailer 2£528 GBP
Retailer 3£657 GBP
Fonder Diamond£768 GBP

4 data points across 3 retailers

2 retailers£657 GBP to £768 GBP

B
Cheapest Retailer
-
£657 GBP
$881 USD
Most Expensive
B
Fonder Diamond
96949836 · Oct 31
£768 GBP
SGD 1,390 SGD
View
1 more retailer has this diamond
Prices start from £657 GBPSave up to £110 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
0.57ct Cushion
£657 GBP