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Radiant|Lab Grown|IGI

1.54ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768628761

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

Certificate IGI LG768628761

Diamond specifications and retailer prices

From $819 USD
HK$6,400 HKD
As of October 31, 2026
Save $2,751 USD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,570 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant 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 LG768628761 or 768628761. Listed at 14 retailers as of October 31, 2026, with prices from $819 to $3,570, a $2,751 spread on the same certified stone. Brilliant Earth lists it at $3,570. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628761
Dimensions8.45 × 5.71 × 3.67 mm
L/W Ratio1.48
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
8.45 mm5.71 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628761
Side View
Table 62.0%Crown 43.9°Girdle: Slightly ThickPavilion 33.5°Culet: NoneDepth 64.3%

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 31
Current: $3,570 USD|Low: $819 USD|High: $4,930 USD|Avg: $1,919 USD|-27.6%
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
November 1, 2026
Retailer 9$819 USD
Retailer 11$931 USD
Retailer 4$1,012 USD
Retailer 7$1,097 USD
Retailer 6$1,121 USD
Retailer 3$1,141 USD
Retailer 8$1,233 USD
Retailer 13$1,694 USD
Retailer 10$2,310 USD
Retailer 12$2,324 USD
Retailer 2$3,115 USD
Retailer 5$3,336 USD
Brilliant Earth$3,570 USD

43 data points across 13 retailers

14 retailers$819 USD to $3,570 USD

A
Cheapest Retailer
-
$819 USD
HK$6,400 HKD
A
Retailer 2
-
$931 USD
View
A
Retailer 3
-
$1,012 USD
View
A
Retailer 4
-
$1,097 USD
€1,045 EUR
View
A
Retailer 5
-
$1,121 USD
£883 GBP
View
B+
Retailer 6
-
$1,141 USD
View
B+
Retailer 7
-
$1,233 USD
ZAR 19,922 ZAR
View
B+
Retailer 8
-
$1,694 USD
View
B+
Retailer 9
-
$2,310 USD
View
B
Retailer 10
-
$2,324 USD
View
B
Retailer 11
-
$3,115 USD
£2,453 GBP
View
B
Retailer 12
-
$3,336 USD
View
Retailer 13
-
$3,517 USD
View
Price last confirmed 73 days ago
Most Expensive
B
Brilliant Earth
18658505A · Oct 31
$3,570 USD
View
13 more retailers have this diamond
Prices start from $819 USDSave up to $2,751 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
1.54ct Radiant
$819 USD