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Radiant|Lab Grown|IGI

1.59ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG654433616

Certificate IGI LG654433616

Diamond specifications and retailer prices

From $336 USD
Save $3,994 USD (92%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,330 USD at Brilliant Earth
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG654433616 or 654433616. Listed at 27 retailers, with prices from $336 to $4,330 at Brilliant Earth, a $3,994 spread on the same certified stone. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654433616
Dimensions8.21 × 5.94 × 3.86 mm
L/W Ratio1.38
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
8.21 mm5.94 mm1.59 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654433616
Side View
Table 65.0%Crown 41.7°Girdle: MediumPavilion 34°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $4,330 USD|Low: $267 USD|High: $4,750 USD|Avg: $1,345 USD|-8.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 11
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
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Retailer 21
Retailer 22
October 1, 2026
Retailer 18$375 USD
Retailer 13$480 USD
Retailer 16$486 USD
Retailer 17$525 USD
Retailer 5$659 USD
Retailer 7$676 USD
Retailer 4$701 USD
Retailer 19$737 USD
Retailer 11$944 USD
Retailer 22$967 USD
Retailer 9$1,119 USD
Retailer 20$1,120 USD
Retailer 10$1,367 USD
Retailer 15$1,383 USD
Retailer 6$1,396 USD
Retailer 14$1,509 USD
Retailer 12$1,628 USD
Retailer 3$1,688 USD
Retailer 8$1,722 USD
Retailer 2$1,730 USD
Retailer 21$2,610 USD
Brilliant Earth$4,330 USD

41 data points across 22 retailers

27 retailers$336 USD to $4,330 USD

A
Cheapest Retailer
-
$336 USD
A
Retailer 2
-
$375 USD
View
A
Retailer 3
-
$390 USD
View
A
Retailer 4
-
$411 USD
View
A
Retailer 5
-
$480 USD
View
A
Retailer 6
-
$486 USD
HK$3,800 HKD
View
A
Retailer 7
-
$525 USD
View
A
Retailer 8
-
$659 USD
€628 EUR
View
A
Retailer 9
-
$676 USD
View
A
Retailer 10
-
$701 USD
ZAR 11,326 ZAR
View
A
Retailer 11
-
$739 USD
£582 GBP
View
A
Retailer 12
-
$944 USD
View
A
Retailer 13
-
$967 USD
A$1,488 AUD
View
A
Retailer 14
-
$1,119 USD
View
A
Retailer 15
-
$1,120 USD
View
B+
Retailer 16
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$1,339 USD
View
B+
Retailer 17
-
$1,383 USD
View
B+
Retailer 18
-
$1,395 USD
View
B+
Retailer 19
-
$1,396 USD
SGD 1,886 SGD
View
B+
Retailer 20
-
$1,509 USD
£1,188 GBP
View
Price last confirmed 22 days ago
B+
Retailer 21
-
$1,628 USD
View
B+
Retailer 22
-
$1,688 USD
£1,329 GBP
View
B+
Retailer 23
-
$1,722 USD
View
B+
Retailer 24
-
$1,730 USD
A$2,662 AUD
View
B
Retailer 25
-
$2,551 USD
View
B
Retailer 26
-
$2,610 USD
View
Most Expensive
B
Brilliant Earth
11938619A · Sep 29
$4,330 USD
View
26 more retailers have this diamond
Prices start from $336 USDSave up to $3,994 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.

A
1.59ct Radiant
$336 USD