Round|Lab Grown|IGI

1.51ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG802608084

Shape and cutting style on the report: Round brilliant

Certificate IGI LG802608084

Diamond specifications and retailer prices

From $562 USD
As of October 30, 2026
Save $1,458 USD (72%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,020 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG802608084 or 802608084. Listed at 7 retailers as of October 30, 2026, with prices from $562 to $2,020, a $1,458 spread on the same certified stone. Brilliant Earth lists it at $2,020. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG802608084
Dimensions7.45 × 7.41 × 4.49 mm
L/W Ratio1.01
Girdle conditionFaceted
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 Faint Blue
Top View
7.45 mm7.41 mm1.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG802608084
Side View
Table 60.0%Crown 33.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.4%

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: $2,020 USD|Low: $562 USD|High: $2,380 USD|Avg: $1,148 USD|-15.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 4$562 USD
Retailer 3$601 USD
Retailer 6$638 USD
Retailer 5$891 USD
Retailer 2$1,369 USD
Retailer 7$1,875 USD
Brilliant Earth$2,020 USD

22 data points across 7 retailers

7 retailers$562 USD to $2,020 USD

A
Cheapest Retailer
-
$562 USD
A
Retailer 2
-
$601 USD
View
A
Retailer 3
-
$638 USD
€608 EUR
View
B+
Retailer 4
-
$891 USD
View
B+
Retailer 5
-
$1,369 USD
£1,078 GBP
View
Retailer 6
-
$1,875 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20472566A · Oct 31
$2,020 USD
View
6 more retailers have this diamond
Prices start from $562 USDSave up to $1,458 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
1.51ct Round
$562 USD