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Radiant|Lab Grown|IGI

0.81ct G SI2 Radiant Lab Grown Diamond

G/SI2

Diamond specifications and retailer prices

From $147 USD
As of October 30, 2026
Save $558 USD (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $705 USD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

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) and certified by IGI. Listed at 7 retailers as of October 30, 2026, with prices from $147 to $705, a $558 spread on the same certified stone. Diamond Exchange Canada lists it at $705. 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
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.50 × 4.70 × 3.22 mm
L/W Ratio1.38
Top View
6.50 mm4.70 mm0.81 ctG / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 59.5%CrownGirdle: SLT-THKPavilionCulet: 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: Oct 30
Current: $705 USD|Low: $147 USD|High: $705 USD|Avg: $344 USD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$147 USD
Retailer 3$171 USD
Retailer 4$183 USD
Retailer 6$183 USD
Retailer 2$314 USD
Retailer 7$648 USD
Diamond Exchange Canada$705 USD

18 data points across 7 retailers

7 retailers$147 USD to $705 USD

B+
Cheapest Retailer
-
$147 USD
B+
Retailer 2
-
$171 USD
View
B+
Retailer 3
-
$183 USD
View
Retailer 4
-
$183 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$314 USD
£247 GBP
View
C
Retailer 6
-
$648 USD
View
Most Expensive
C
Diamond Exchange Canada
1960632036 · Oct 30
$705 USD
CA$979 CAD
View
6 more retailers have this diamond
Prices start from $147 USDSave up to $558 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
$147 USD