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Cushion|Lab Grown|IGI

1.60ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG752544865

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG752544865

Diamond specifications and retailer prices

From £276 GBP
$370 USD
As of November 1, 2026
Save £544 GBP (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £820 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.6ct lab-grown cushion diamond

This 1.6ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG752544865 or 752544865. Listed at 5 retailers as of November 1, 2026, with prices from £276 to £820, a £544 spread on the same certified stone. MOH London lists it at £820. 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

1.60
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752544865
Dimensions6.88 × 6.61 × 4.23 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.88 mm6.61 mm1.60 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752544865
Side View
Table 64.0%Crown 35.9°Girdle: STK-THKPavilion 38°Culet: NoneDepth 64.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £820 GBP|Low: £276 GBP|High: £829 GBP|Avg: £462 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 3£276 GBP
Retailer 2£377 GBP
Retailer 4£385 GBP
MOH London£820 GBP

37 data points across 4 retailers

5 retailers£276 GBP to £820 GBP

B+
Cheapest Retailer
-
£276 GBP
$370 USD
A
Retailer 2
-
£377 GBP
View
A
Retailer 3
-
£385 GBP
$517 USD
View
B+
Retailer 4
-
£704 GBP
$945 USD
View
Most Expensive
B+
MOH London
LG752544865 · Nov 1
£820 GBP
View
4 more retailers have this diamond
Prices start from £276 GBPSave up to £544 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
1.60ct Cushion
£276 GBP