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Radiant|Lab Grown|IGI

0.86ct G SI1 Radiant Lab Grown Diamond

GD • G/SI1 • IGI LG515230182

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

Certificate IGI LG515230182

Diamond specifications and retailer prices

From £164 GBP
$220 USD
As of October 28, 2026
Save £978 GBP (86%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,142 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 0.86ct lab-grown radiant diamond

This 0.86ct lab-grown radiant sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG515230182 or 515230182. Listed at 7 retailers as of October 28, 2026, with prices from £164 to £1,142, a £978 spread on the same certified stone. Do Amore Diamonds lists it at £1,142. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.86
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515230182
Dimensions6.77 × 4.69 × 3.13 mm
L/W Ratio1.44
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
6.77 mm4.69 mm0.86 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515230182
Side View
Table 65.5%Crown 48.6°Girdle: MED-STKPavilion 34.8°Culet: NoneDepth 66.7%

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 28
Current: £1,142 GBP|Low: £164 GBP|High: £1,142 GBP|Avg: £482 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£164 GBP
Retailer 6£268 GBP
Retailer 3£292 GBP
Retailer 7£299 GBP
Retailer 5£502 GBP
Retailer 8£539 GBP
Retailer 2£762 GBP
Do Amore Diamonds£1,142 GBP

28 data points across 8 retailers

7 retailers£164 GBP to £1,142 GBP

A
Cheapest Retailer
-
£164 GBP
$220 USD
B+
Retailer 2
-
£268 GBP
$359 USD
View
B+
Retailer 3
-
£292 GBP
View
B
Retailer 4
-
£299 GBP
$401 USD
View
C
Retailer 5
-
£502 GBP
$672 USD
View
B
Retailer 6
-
£762 GBP
View
Most Expensive
C
Do Amore Diamonds
27-A8374C25E · Oct 31
£1,142 GBP
$1,530 USD
View
6 more retailers have this diamond
Prices start from £164 GBPSave up to £978 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
0.86ct Radiant
£164 GBP