Radiant|Lab Grown|IGI

1.20ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG815606161

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

Certificate IGI LG815606161

Diamond specifications and retailer prices

From $265 USD
As of October 30, 2026
Save $920 USD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,185 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815606161 or 815606161. Listed at 13 retailers as of October 29, 2026, with prices from $265 to $1,185, a $920 spread on the same certified stone. MOH London lists it at $1,185. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815606161
Dimensions8.01 × 4.97 × 3.40 mm
L/W Ratio1.61
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.01 mm4.97 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815606161
Side View
Table 65.0%Crown 39.7°Girdle: STK-THKPavilion 34.5°Culet: NoneDepth 68.4%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,185 USD|Low: $265 USD|High: $1,229 USD|Avg: $733 USD|-3.6%
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 30, 2026
Retailer 10$265 USD
Retailer 4$475 USD
Retailer 2$495 USD
Retailer 3$503 USD
Retailer 8$556 USD
Retailer 12$609 USD
Retailer 11$720 USD
Retailer 9$753 USD
Retailer 7$948 USD
Retailer 13$953 USD
Retailer 6$994 USD
Retailer 5$1,180 USD
MOH London$1,185 USD

31 data points across 13 retailers

13 retailers$265 USD to $1,185 USD

A
Cheapest Retailer
-
$265 USD
Final sale: no returns
Retailer 2
-
$475 USD
€452 EUR
View
Price last confirmed 7 days ago
A
Retailer 3
-
$495 USD
View
Retailer 4
-
$503 USD
ZAR 8,129 ZAR
View
Price last confirmed 7 days ago
A
Retailer 5
-
$556 USD
£438 GBP
View
A
Retailer 6
-
$609 USD
View
B+
Retailer 7
-
$720 USD
A$1,108 AUD
View
B+
Retailer 8
-
$753 USD
View
B+
Retailer 9
-
$948 USD
SGD 1,281 SGD
View
B+
Retailer 10
-
$953 USD
View
B+
Retailer 11
-
$994 USD
View
Retailer 12
-
$1,180 USD
A$1,815 AUD
View
Price last confirmed 22 days ago
Most Expensive
B+
MOH London
LG815606161 · Oct 29
$1,185 USD
£933 GBP
View
12 more retailers have this diamond
Prices start from $265 USDSave up to $920 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.

A
1.20ct Radiant
$265 USD