Cushion|Lab Grown|GIA

5.23ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • GIA 6511897426

Certificate GIA 6511897426

Diamond specifications and retailer prices

From £7,170 GBP
As of October 29, 2026
Save £1,987 GBP (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £9,157 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.23ct lab-grown cushion diamond

This 5.23ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511897426. Listed at 3 retailers as of October 29, 2026, with prices from £7,170 to £9,157, a £1,987 spread on the same certified stone. Brilliant Earth lists it at £9,157. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6511897426
Dimensions10.18 × 9.88 × 6.70 mm
L/W Ratio1.03
Top View
10.18 mm9.88 mm5.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511897426
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £9,157 GBP|Low: £2,469 GBP|High: £18,539 GBP|Avg: £9,297 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4£2,469 GBP
Retailer 2£7,170 GBP
Brilliant Earth£9,157 GBP
Retailer 3£17,890 GBP

10 data points across 4 retailers

3 retailers£7,170 GBP to £9,157 GBP

B+
Cheapest Retailer
-
£7,170 GBP
Most Expensive
B
Brilliant Earth
16511405A · Oct 29
£9,157 GBP
$12,270 USD
View
1 more retailer has this diamond
Prices start from £7,170 GBPSave up to £1,987 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+
5.23ct Cushion
£7,170 GBP