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Radiant|Lab Grown|IGI

1.59ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG644439742

Certificate IGI LG644439742

Diamond specifications and retailer prices

From $304 USD
Save $3,236 USD (91%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $3,540 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 LG644439742 or 644439742. Listed at 28 retailers, with prices from $304 to $3,540 at Brilliant Earth, a $3,236 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 angle42.8°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644439742
Dimensions8.55 × 5.71 × 3.76 mm
L/W Ratio1.50
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
8.55 mm5.71 mm1.59 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644439742
Side View
Table 63.0%Crown 42.8°Girdle: MediumPavilion 32.9°Culet: NoneDepth 65.8%

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: $3,540 USD|Low: $242 USD|High: $4,280 USD|Avg: $1,293 USD|-17.3%
Brilliant Earth
Retailer 2
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Retailer 20
October 1, 2026
Retailer 20$365 USD
Retailer 14$480 USD
Retailer 3$540 USD
Retailer 6$639 USD
Retailer 4$659 USD
Retailer 19$701 USD
Retailer 15$737 USD
Retailer 7$868 USD
Retailer 9$944 USD
Retailer 18$967 USD
Retailer 16$1,059 USD
Retailer 8$1,499 USD
Retailer 12$1,509 USD
Retailer 11$1,522 USD
Retailer 5$1,599 USD
Retailer 2$1,689 USD
Retailer 13$1,730 USD
Retailer 17$2,525 USD
Retailer 10$2,700 USD
Brilliant Earth$3,540 USD

41 data points across 20 retailers

28 retailers$304 USD to $3,540 USD

A
Cheapest Retailer
-
$304 USD
A
Retailer 2
-
$353 USD
View
A
Retailer 3
-
$365 USD
View
A
Retailer 4
-
$373 USD
View
A
Retailer 5
-
$480 USD
View
A
Retailer 6
-
$540 USD
View
A
Retailer 7
-
$576 USD
HK$4,500 HKD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$639 USD
View
A
Retailer 9
-
$659 USD
€628 EUR
View
A
Retailer 10
-
$701 USD
ZAR 11,326 ZAR
View
A
Retailer 11
-
$724 USD
£570 GBP
View
Price last confirmed 21 days ago
A
Retailer 12
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$739 USD
£582 GBP
View
A
Retailer 13
-
$868 USD
View
A
Retailer 14
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$944 USD
View
A
Retailer 15
-
$967 USD
A$1,488 AUD
View
A
Retailer 16
-
$1,059 USD
View
B+
Retailer 17
-
$1,339 USD
View
B+
Retailer 18
-
$1,499 USD
View
B+
Retailer 19
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$1,509 USD
£1,188 GBP
View
Price last confirmed 22 days ago
B+
Retailer 20
-
$1,522 USD
View
B+
Retailer 21
-
$1,599 USD
SGD 2,161 SGD
View
B+
Retailer 22
-
$1,689 USD
£1,330 GBP
View
B+
Retailer 23
-
$1,730 USD
A$2,662 AUD
View
B
Retailer 24
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$2,495 USD
View
B
Retailer 25
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$2,525 USD
View
B
Retailer 26
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$2,551 USD
View
B
Retailer 27
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$2,700 USD
View
Most Expensive
B
Brilliant Earth
13057443Y · Oct 1
$3,540 USD
View
27 more retailers have this diamond
Prices start from $304 USDSave up to $3,236 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
$304 USD