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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG754594296

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754594296

Diamond specifications and retailer prices

From $251 USD
As of October 29, 2026
Save $1,779 USD (88%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,030 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round 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 LG754594296 or 754594296. Listed at 7 retailers as of October 29, 2026, with prices from $251 to $2,030, a $1,779 spread on the same certified stone. Brilliant Earth lists it at $2,030. 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 angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594296
Dimensions6.77 × 6.81 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
6.77 mm6.81 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594296
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: $2,030 USD|Low: $251 USD|High: $2,730 USD|Avg: $1,045 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 29, 2026
Retailer 2$251 USD
Retailer 13$291 USD
Retailer 12$311 USD
Retailer 14$314 USD
Retailer 8$437 USD
Retailer 3$545 USD
Retailer 10$562 USD
Retailer 4$752 USD
Retailer 11$1,000 USD
Retailer 16$1,050 USD
Retailer 7$1,091 USD
Retailer 15$1,299 USD
Retailer 5$1,513 USD
Retailer 9$1,577 USD
Retailer 17$1,690 USD
Brilliant Earth$2,030 USD
Retailer 6$2,730 USD

14 data points across 17 retailers

7 retailers$251 USD to $2,030 USD

A+
Cheapest Retailer
-
$251 USD
A
Retailer 2
-
$291 USD
View
A
Retailer 3
-
$311 USD
View
A
Retailer 4
-
$314 USD
View
A
Retailer 5
-
$562 USD
View
B+
Retailer 6
-
$1,000 USD
View
Most Expensive
B
Brilliant Earth
17496141Y · Oct 29
$2,030 USD
View
6 more retailers have this diamond
Prices start from $251 USDSave up to $1,779 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 Round
$251 USD