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Radiant|Lab Grown|IGI

1.62ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG553223154

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

Certificate IGI LG553223154

Diamond specifications and retailer prices

From £130 GBP
$174 USD
As of October 27, 2026
Save £1,115 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,244 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.62ct lab-grown radiant diamond

This 1.62ct lab-grown radiant 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 LG553223154 or 553223154. Listed at 9 retailers as of October 27, 2026, with prices from £130 to £1,244, a £1,115 spread on the same certified stone. Do Amore Diamonds lists it at £1,244. 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

1.62
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG553223154
Dimensions8.40 × 5.53 × 3.99 mm
L/W Ratio1.52
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
8.40 mm5.53 mm1.62 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG553223154
Side View
Table 63.5%Crown 42°Girdle: MediumPavilionCulet: NoneDepth 72.2%

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: Oct 27
Current: £1,244 GBP|Low: £104 GBP|High: £1,289 GBP|Avg: £537 GBP|-3.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 20, 2026
Retailer 8£130 GBP
Retailer 2£151 GBP
Retailer 13£151 GBP
Retailer 10£286 GBP
Retailer 3£314 GBP
Retailer 4£399 GBP
Retailer 6£482 GBP
Retailer 14£525 GBP
Retailer 7£545 GBP
Retailer 9£570 GBP
Retailer 5£686 GBP
Retailer 12£782 GBP
Retailer 11£849 GBP
Do Amore Diamonds£1,244 GBP

17 data points across 14 retailers

9 retailers£130 GBP to £1,244 GBP

A
Cheapest Retailer
-
£130 GBP
$174 USD
A
Retailer 2
-
£151 GBP
$202 USD
View
A
Retailer 3
-
£151 GBP
$202 USD
View
Final sale: no returns
B+
Retailer 4
-
£286 GBP
$384 USD
View
Retailer 5
-
£545 GBP
$732 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£570 GBP
$765 USD
View
B
Retailer 7
-
£782 GBP
$1,050 USD
View
Retailer 8
-
£849 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
Do Amore Diamonds
27-F7F9EF79B · Oct 29
£1,244 GBP
$1,670 USD
View
8 more retailers have this diamond
Prices start from £130 GBPSave up to £1,115 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
1.62ct Radiant
£130 GBP