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Radiant|Lab Grown|IGI

1.87ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG532236403

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

Certificate IGI LG532236403

Diamond specifications and retailer prices

From £925 GBP
$1,240 USD
As of October 31, 2026
Save £3,476 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,402 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.87ct lab-grown radiant diamond

This 1.87ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532236403 or 532236403. Listed at 11 retailers as of October 27, 2026, with prices from £925 to £4,402, a £3,476 spread on the same certified stone. MOH London lists it at £4,402. 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

1.87
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532236403
Dimensions8.51 × 5.94 × 4.06 mm
L/W Ratio1.43
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
8.51 mm5.94 mm1.87 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532236403
Side View
Table 65.0%Crown 45.4°Girdle: MediumPavilion 30.2°Culet: NoneDepth 68.4%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £4,402 GBP|Low: £925 GBP|High: £4,455 GBP|Avg: £2,217 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 25, 2026
Retailer 7£925 GBP
Retailer 6£1,327 GBP
Retailer 11£1,443 GBP
Retailer 12£1,486 GBP
Retailer 8£1,539 GBP
Retailer 5£1,561 GBP
Retailer 13£1,664 GBP
Retailer 3£2,054 GBP
Retailer 9£2,414 GBP
Retailer 2£2,589 GBP
Retailer 10£2,885 GBP
MOH London£4,402 GBP
Retailer 4£4,407 GBP

16 data points across 13 retailers

11 retailers£925 GBP to £4,402 GBP

A
Cheapest Retailer
-
£925 GBP
$1,240 USD
A
Retailer 2
-
£1,327 GBP
$1,778 USD
View
B+
Retailer 3
-
£1,443 GBP
$1,934 USD
View
B+
Retailer 4
-
£1,486 GBP
$1,991 USD
View
Final sale: no returns
Retailer 5
-
£1,539 GBP
$2,062 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£1,539 GBP
$2,062 USD
View
B+
Retailer 7
-
£1,664 GBP
$2,230 USD
View
B
Retailer 8
-
£2,414 GBP
$3,235 USD
View
B
Retailer 9
-
£2,589 GBP
$3,469 USD
View
B
Retailer 10
-
£2,885 GBP
$3,866 USD
View
Most Expensive
B
MOH London
LG532236403 · Oct 27
£4,402 GBP
View
10 more retailers have this diamond
Prices start from £925 GBPSave up to £3,476 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
1.87ct Radiant
£925 GBP