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Round|Lab Grown|IGI

1.50ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG816612523

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816612523

Diamond specifications and retailer prices

From $431 USD
As of October 29, 2026
Save $2,739 USD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,170 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.5ct lab-grown round diamond

This 1.5ct 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 LG816612523 or 816612523. Listed at 21 retailers as of October 29, 2026, with prices from $431 to $3,170, a $2,739 spread on the same certified stone. Brilliant Earth lists it at $3,170. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816612523
Dimensions7.41 × 7.37 × 4.50 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
7.41 mm7.37 mm1.50 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816612523
Side View
Table 58.0%Crown 33.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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: $3,170 USD|Low: $431 USD|High: $3,270 USD|Avg: $1,324 USD|-3.1%
Brilliant Earth
Retailer 2
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Retailer 21
October 30, 2026
Retailer 11$431 USD
Retailer 6$482 USD
Retailer 7$483 USD
Retailer 5$534 USD
Retailer 14$579 USD
Retailer 17$752 USD
Retailer 20$815 USD
Retailer 10$848 USD
Retailer 13$853 USD
Retailer 2$879 USD
Retailer 16$919 USD
Retailer 21$989 USD
Retailer 8$1,237 USD
Retailer 18$1,499 USD
Retailer 3$1,718 USD
Retailer 9$1,750 USD
Retailer 4$1,868 USD
Retailer 19$1,931 USD
Retailer 15$1,974 USD
Retailer 12$2,615 USD
Brilliant Earth$3,170 USD

27 data points across 21 retailers

21 retailers$431 USD to $3,170 USD

A+
Cheapest Retailer
-
$431 USD
A
Retailer 2
-
$482 USD
View
Final sale: no returns
A
Retailer 3
-
$483 USD
View
A
Retailer 4
-
$534 USD
View
Retailer 5
-
$579 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$752 USD
View
A
Retailer 7
-
$815 USD
View
A
Retailer 8
-
$848 USD
View
A
Retailer 9
-
$853 USD
€812 EUR
View
A
Retailer 10
-
$879 USD
£692 GBP
View
A
Retailer 11
-
$919 USD
ZAR 14,839 ZAR
View
A
Retailer 12
-
$989 USD
View
B+
Retailer 13
-
$1,237 USD
View
B+
Retailer 14
-
$1,499 USD
View
B+
Retailer 15
-
$1,718 USD
View
B+
Retailer 16
-
$1,750 USD
View
B+
Retailer 17
-
$1,868 USD
View
B+
Retailer 18
-
$1,931 USD
View
B+
Retailer 19
-
$1,974 USD
£1,554 GBP
View
Retailer 20
-
$2,615 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21019044A · Oct 29
$3,170 USD
View
20 more retailers have this diamond
Prices start from $431 USDSave up to $2,739 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+
1.50ct Round
$431 USD