Radiant|Lab Grown|IGI

0.81ct G SI2 Radiant Lab Grown Diamond

GD • G/SI2 • IGI LG520200568

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

Certificate IGI LG520200568

Diamond specifications and retailer prices

From $215 USD
As of November 1, 2026
Save $732 USD (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $947 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.81ct lab-grown radiant diamond

This 0.81ct lab-grown radiant sits in the just-under-one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG520200568 or 520200568. Listed at 7 retailers as of October 29, 2026, with prices from $215 to $947, a $732 spread on the same certified stone. MOH London lists it at $947. 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

0.81
Carat
G
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520200568
Dimensions6.50 × 4.70 × 3.22 mm
L/W Ratio1.38
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
6.50 mm4.70 mm0.81 ctG / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520200568
Side View
Table 59.5%Crown 41.5°Girdle: STK-THKPavilion 34.9°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $947 USD|Low: $215 USD|High: $954 USD|Avg: $501 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2$215 USD
Retailer 4$337 USD
Retailer 6$374 USD
Retailer 5$389 USD
Retailer 3$620 USD
Retailer 7$685 USD
MOH London$947 USD

10 data points across 7 retailers

7 retailers$215 USD to $947 USD

B+
Cheapest Retailer
-
$215 USD
B+
Retailer 2
-
$337 USD
View
B
Retailer 3
-
$374 USD
View
Retailer 4
-
$389 USD
£307 GBP
View
Price last confirmed 25 days ago
B
Retailer 5
-
$516 USD
£406 GBP
View
C
Retailer 6
-
$620 USD
View
Most Expensive
C
MOH London
LG520200568 · Oct 29
$947 USD
£746 GBP
View
6 more retailers have this diamond
Prices start from $215 USDSave up to $732 USD

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+
0.81ct Radiant
$215 USD