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Radiant|Lab Grown|IGI

1.60ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG553222719

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG553222719

Diamond specifications and retailer prices

From £720 GBP
As of October 31, 2026
8 retailers carry this diamond
Most expensive: £821 GBP at MOH London · As of October 12, 2026
View at MOH London

About this 1.6ct lab-grown radiant diamond

This 1.6ct lab-grown radiant 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 LG553222719 or 553222719. Listed at 8 retailers as of October 31, 2026. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG553222719
Dimensions8.43 × 5.68 × 3.91 mm
L/W Ratio1.48
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
8.43 mm5.68 mm1.60 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG553222719
Side View
Table 69.5%Crown 43.9°Girdle: MediumPavilion 35.5°Culet: NoneDepth 68.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £821 GBP|Low: £122 GBP|High: £1,217 GBP|Avg: £554 GBP|+2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 8, 2026
Retailer 2£127 GBP
Retailer 9£142 GBP
Retailer 6£281 GBP
Retailer 11£301 GBP
Retailer 4£373 GBP
Retailer 12£446 GBP
Retailer 7£483 GBP
Retailer 8£566 GBP
Retailer 3£676 GBP
Retailer 5£761 GBP
MOH London£821 GBP
Retailer 10£1,217 GBP

12 data points across 12 retailers

8 retailers

Retailer 1
-
£127 GBP
$170 USD
Price last confirmed 24 days ago
Retailer 2
-
£147 GBP
$197 USD
View
Price last confirmed 35 days ago
Retailer 3
-
£281 GBP
$377 USD
View
Price last confirmed 21 days ago
Retailer 4
-
£483 GBP
$647 USD
View
Price last confirmed 18 days ago
Retailer 5
-
£558 GBP
$747 USD
View
Price last confirmed 32 days ago
B
Retailer 6
-
£720 GBP
View
Retailer 7
-
£761 GBP
$1,020 USD
View
Price last confirmed 18 days ago
Most Expensive
MOH London
LG553222719 · Oct 12
£821 GBP
View
Price last confirmed 20 days ago
7 more retailers have this diamond
Prices start from £720 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
1.60ct Radiant
£720 GBP