Round|Lab Grown|IGI

1.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG816624084

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816624084

Diamond specifications and retailer prices

From $461 USD
As of October 29, 2026
Save $2,009 USD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,470 USD at Brilliant Earth · As of October 30, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624084 or 816624084. Listed at 20 retailers as of October 29, 2026, with prices from $461 to $2,470, a $2,009 spread on the same certified stone. Brilliant Earth lists it at $2,470. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624084
Dimensions7.44 × 7.39 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.44 mm7.39 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624084
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

Caratlytics Score

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A+
Exceptional
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 29
Current: $2,470 USD|Low: $460 USD|High: $3,530 USD|Avg: $1,300 USD|-30.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 11$461 USD
Retailer 5$515 USD
Retailer 6$516 USD
Retailer 4$572 USD
Retailer 12$594 USD
Retailer 16$805 USD
Retailer 19$840 USD
Retailer 14$875 USD
Retailer 10$883 USD
Retailer 13$942 USD
Retailer 15$983 USD
Retailer 20$1,011 USD
Retailer 7$1,329 USD
Retailer 17$1,537 USD
Retailer 3$1,838 USD
Retailer 9$1,869 USD
Retailer 18$2,027 USD
Retailer 8$2,103 USD
Retailer 2$2,139 USD
Brilliant Earth$2,470 USD

27 data points across 20 retailers

20 retailers$461 USD to $2,470 USD

A+
Cheapest Retailer
-
$461 USD
A
Retailer 2
-
$515 USD
View
Final sale: no returns
A
Retailer 3
-
$516 USD
View
A
Retailer 4
-
$572 USD
View
Retailer 5
-
$594 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$805 USD
View
A
Retailer 7
-
$840 USD
View
A
Retailer 8
-
$875 USD
€833 EUR
View
A
Retailer 9
-
$883 USD
View
A
Retailer 10
-
$942 USD
£742 GBP
View
A
Retailer 11
-
$983 USD
ZAR 15,873 ZAR
View
A
Retailer 12
-
$1,011 USD
View
B+
Retailer 13
-
$1,329 USD
View
B+
Retailer 14
-
$1,537 USD
View
B+
Retailer 15
-
$1,838 USD
View
B+
Retailer 16
-
$1,869 USD
View
B+
Retailer 17
-
$2,027 USD
View
B+
Retailer 18
-
$2,103 USD
£1,656 GBP
View
B
Retailer 19
-
$2,139 USD
View
Most Expensive
B
Brilliant Earth
21019135A · Oct 30
$2,470 USD
View
19 more retailers have this diamond
Prices start from $461 USDSave up to $2,009 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
$461 USD