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Cushion|Lab Grown|IGI

1.61ct G SI1 Cushion Lab Grown Diamond

EX • G/SI1 • IGI LG608365884

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG608365884

Diamond specifications and retailer prices

From £269 GBP
$357 USD
As of October 29, 2026
Save £934 GBP (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,202 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.61ct lab-grown cushion diamond

This 1.61ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG608365884 or 608365884. Listed at 10 retailers as of October 29, 2026, with prices from £269 to £1,202, a £934 spread on the same certified stone. MOH London lists it at £1,202. 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

1.61
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG608365884
Dimensions6.86 × 6.83 × 4.55 mm
L/W Ratio1.00
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
6.86 mm6.83 mm1.61 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG608365884
Side View
Table 61.0%Crown 32.7°Girdle: MED-VTKPavilion 40.3°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,202 GBP|Low: £269 GBP|High: £1,278 GBP|Avg: £581 GBP|-4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 2£269 GBP
Retailer 6£302 GBP
Retailer 3£384 GBP
Retailer 5£433 GBP
Retailer 8£433 GBP
Retailer 10£490 GBP
Retailer 7£498 GBP
Retailer 4£536 GBP
Retailer 9£1,003 GBP
MOH London£1,202 GBP

43 data points across 10 retailers

10 retailers£269 GBP to £1,202 GBP

A
Cheapest Retailer
-
£269 GBP
$357 USD
Final sale: no returns
A
Retailer 2
-
£302 GBP
$401 USD
View
A
Retailer 3
-
£384 GBP
View
A
Retailer 4
-
£433 GBP
$575 USD
View
A
Retailer 5
-
£433 GBP
$575 USD
View
A
Retailer 6
-
£490 GBP
$651 USD
View
A
Retailer 7
-
£498 GBP
$662 USD
View
B+
Retailer 8
-
£536 GBP
View
B
Retailer 9
-
£1,003 GBP
$1,333 USD
View
Most Expensive
B
MOH London
LG608365884 · Oct 29
£1,202 GBP
View
9 more retailers have this diamond
Prices start from £269 GBPSave up to £934 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
1.61ct Cushion
£269 GBP