CaratHunter
Plans
Radiant|Lab Grown|IGI

0.87ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG546298718

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

Certificate IGI LG546298718

Diamond specifications and retailer prices

From £93 GBP
$124 USD
As of October 30, 2026
Save £966 GBP (91%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,059 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.87ct lab-grown radiant diamond

This 0.87ct lab-grown radiant sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG546298718 or 546298718. Listed at 9 retailers as of October 30, 2026, with prices from £93 to £1,059, a £966 spread on the same certified stone. MOH London lists it at £1,059. 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

0.87
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG546298718
Dimensions6.84 × 4.63 × 3.18 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
6.84 mm4.63 mm0.87 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG546298718
Side View
Table 62.5%Crown 41.4°Girdle: MediumPavilion 35°Culet: NoneDepth 68.7%

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 30
Current: £1,059 GBP|Low: £89 GBP|High: £1,072 GBP|Avg: £486 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4£93 GBP
Retailer 5£220 GBP
Retailer 2£343 GBP
Retailer 3£390 GBP
Retailer 6£461 GBP
MOH London£1,059 GBP

18 data points across 6 retailers

9 retailers£93 GBP to £1,059 GBP

A
Cheapest Retailer
-
£93 GBP
$124 USD
A
Retailer 2
-
£107 GBP
$144 USD
View
A
Retailer 3
-
£220 GBP
$295 USD
View
B+
Retailer 4
-
£343 GBP
$460 USD
View
B+
Retailer 5
-
£390 GBP
$523 USD
View
B
Retailer 6
-
£407 GBP
$546 USD
View
B
Retailer 7
-
£461 GBP
$618 USD
View
B
Retailer 8
-
£1,037 GBP
$1,390 USD
View
Most Expensive
B
MOH London
LG546298718 · Nov 1
£1,059 GBP
View
8 more retailers have this diamond
Prices start from £93 GBPSave up to £966 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
0.87ct Radiant
£93 GBP