Cushion|Lab Grown|GIA

3.07ct J SI1 Cushion Lab Grown Diamond

VG • J/SI1 • GIA 5231852398

Certificate GIA 5231852398

Diamond specifications and retailer prices

From £23,190 GBP
As of November 6, 2026
Save £777 GBP (3%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £23,967 GBP at Jared · As of November 6, 2026
View at Jared

About this 3.07ct lab-grown cushion diamond

This 3.07ct lab-grown cushion sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231852398. Listed at 3 retailers as of November 6, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.07
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginLab Grown
Grading LabGIA
CertificateGIA 5231852398
Dimensions9.25 × 7.80 mm
L/W Ratio1.19
Top View
9.25 mm7.80 mm3.07 ctJ / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 5231852398
Side View
Table 70.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £23,967 GBP|Low: £23,190 GBP|High: £23,967 GBP|Avg: £23,388 GBP
Jared
Retailer 2
Retailer 3
June 25, 2026
Retailer 2£23,190 GBP
Retailer 3£23,190 GBP
Jared£23,967 GBP

5 data points across 3 retailers

3 retailers£23,190 GBP to £23,967 GBP

B
Cheapest Retailer
-
£23,190 GBP
B
Retailer 2
-
£23,190 GBP
View
Most Expensive
C
Jared
158117395 · Nov 6
£23,967 GBP
$32,080 USD
View
2 more retailers have this diamond
Prices start from £23,190 GBPSave up to £777 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
3.07ct Cushion
£23,190 GBP