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Cushion|Lab Grown|IGI

0.88ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG588337907

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG588337907

Diamond specifications and retailer prices

From £113 GBP
$152 USD
As of November 1, 2026
Save £863 GBP (88%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £976 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 0.88ct lab-grown cushion diamond

This 0.88ct lab-grown cushion sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG588337907 or 588337907. Listed at 7 retailers as of November 1, 2026, with prices from £113 to £976, a £863 spread on the same certified stone. Do Amore Diamonds lists it at £976. 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

0.88
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588337907
Dimensions6.85 × 4.99 × 3.41 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.85 mm4.99 mm0.88 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588337907
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £193 GBP|Low: £113 GBP|High: £657 GBP|Avg: £375 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6£113 GBP
Retailer 1£193 GBP
Retailer 4£236 GBP
Retailer 3£335 GBP
Retailer 5£488 GBP
Retailer 2£653 GBP

17 data points across 6 retailers

7 retailers£113 GBP to £976 GBP

A
Cheapest Retailer
-
£113 GBP
$152 USD
Final sale: no returns
A
Retailer 2
-
£193 GBP
View
A
Retailer 3
-
£236 GBP
$317 USD
View
A
Retailer 4
-
£335 GBP
$450 USD
View
B+
Retailer 5
-
£488 GBP
$655 USD
View
B
Retailer 6
-
£653 GBP
View
Most Expensive
B
Do Amore Diamonds
27-180F84526 · Nov 2
£976 GBP
$1,310 USD
View
6 more retailers have this diamond
Prices start from £113 GBPSave up to £863 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.

A
0.88ct Cushion
£113 GBP