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Cushion|Lab Grown|GIA

1.08ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • GIA 5526011064

Certificate GIA 5526011064

Diamond specifications and retailer prices

From £508 GBP
$680 USD
As of October 30, 2026
Save £97 GBP (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £605 GBP at Kay Jewelers · As of October 31, 2026
View at Kay Jewelers

About this 1.08ct lab-grown cushion diamond

This 1.08ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5526011064. Listed at 3 retailers as of October 30, 2026, with prices from £508 to £605, a £97 spread on the same certified stone. Kay Jewelers lists it at £605. 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

1.08
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5526011064
Dimensions7.20 × 5.58 mm
L/W Ratio1.29
Top View
7.20 mm5.58 mm1.08 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5526011064
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.9%

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: Oct 30
Current: £605 GBP|Low: £508 GBP|High: £761 GBP|Avg: £643 GBP|-20.6%
Kay Jewelers
Retailer 2
Retailer 3
August 2, 2026
Retailer 3£508 GBP
Kay Jewelers£605 GBP
Retailer 2£605 GBP

10 data points across 3 retailers

3 retailers£508 GBP to £605 GBP

B+
Cheapest Retailer
-
£508 GBP
$680 USD
B
Retailer 2
-
£605 GBP
$810 USD
View
Most Expensive
B
Kay Jewelers
254598423 · Oct 31
£605 GBP
$810 USD
View
2 more retailers have this diamond
Prices start from £508 GBPSave up to £97 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+
1.08ct Cushion
£508 GBP