Radiant|Lab Grown|IGI

1.20ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG742543994

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

Certificate IGI LG742543994

Diamond specifications and retailer prices

From $234 USD
As of October 30, 2026
Save $1,526 USD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,845 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 LG742543994 or 742543994. Listed at 22 retailers as of October 30, 2026, with a 652% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle43.9°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742543994
Dimensions7.53 × 5.24 × 3.57 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.53 mm5.24 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742543994
Side View
Table 64.0%Crown 43.9°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 68.1%

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: $1,845 USD|Low: $260 USD|High: $2,430 USD|Avg: $878 USD|-1.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3$260 USD
Retailer 8$481 USD
Retailer 10$491 USD
Retailer 6$498 USD
Retailer 11$529 USD
Retailer 4$547 USD
Retailer 7$707 USD
Retailer 9$934 USD
Retailer 5$1,167 USD
Retailer 2$1,760 USD
Rare Carat$1,845 USD

42 data points across 11 retailers

22 retailers$234 USD to $1,760 USD

A
Cheapest Retailer
-
$234 USD
A
Retailer 2
-
$260 USD
View
Final sale: no returns
A
Retailer 3
-
$271 USD
View
A
Retailer 4
-
$290 USD
View
A
Retailer 5
-
$290 USD
View
A
Retailer 6
-
$320 USD
HK$2,500 HKD
View
A
Retailer 7
-
$481 USD
€458 EUR
View
A
Retailer 8
-
$491 USD
View
A
Retailer 9
-
$498 USD
ZAR 8,038 ZAR
View
A
Retailer 10
-
$529 USD
View
A
Retailer 11
-
$547 USD
£430 GBP
View
A
Retailer 12
-
$707 USD
A$1,087 AUD
View
B+
Retailer 13
-
$752 USD
View
B+
Retailer 14
-
$931 USD
View
B+
Retailer 15
-
$934 USD
View
B+
Retailer 16
-
$936 USD
SGD 1,265 SGD
View
B+
Retailer 17
-
$983 USD
View
B+
Retailer 18
-
$1,128 USD
£888 GBP
View
B+
Retailer 19
-
$1,167 USD
£919 GBP
View
B
Retailer 20
-
$1,301 USD
View
B
Retailer 21
-
$1,760 USD
View
Most Expensive
Rare Carat
A2-315A · Oct 21
$1,845 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $234 USDSave up to $1,526 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
$234 USD