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Radiant|Lab Grown|IGI

1.59ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG621482237

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

Certificate IGI LG621482237

Diamond specifications and retailer prices

From $262 USD
As of November 4, 2026
Save $2,308 USD (90%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $2,570 USD at Brilliant Earth · As of November 4, 2026
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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG621482237 or 621482237. Listed at 29 retailers as of November 4, 2026, with prices from $262 to $2,570, a $2,308 spread on the same certified stone. Brilliant Earth lists it at $2,570. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621482237
Dimensions8.62 × 5.87 × 3.77 mm
L/W Ratio1.47
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
8.62 mm5.87 mm1.59 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621482237
Side View
Table 64.0%Crown 44.4°Girdle: MediumPavilionCulet: NoneDepth 64.2%

Caratlytics Score

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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: Nov 4
Current: $2,570 USD|Low: $262 USD|High: $2,570 USD|Avg: $979 USD
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
November 5, 2026
Retailer 16$262 USD
Retailer 10$485 USD
Retailer 6$486 USD
Retailer 3$508 USD
Retailer 13$590 USD
Retailer 8$591 USD
Retailer 12$618 USD
Retailer 2$627 USD
Retailer 11$840 USD
Retailer 15$998 USD
Retailer 4$1,277 USD
Retailer 5$1,322 USD
Retailer 7$1,412 USD
Retailer 9$1,432 USD
Retailer 14$1,790 USD
Brilliant Earth$2,570 USD

45 data points across 16 retailers

29 retailers$262 USD to $2,570 USD

A
Cheapest Retailer
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$262 USD
Retailer 2
-
$262 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$262 USD
View
Price last confirmed 28 days ago
Retailer 4
-
$304 USD
View
Price last confirmed 39 days ago
A
Retailer 5
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$311 USD
View
Final sale: no returns
Retailer 6
-
$321 USD
View
Price last confirmed 37 days ago
Retailer 7
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$325 USD
View
Price last confirmed 33 days ago
A
Retailer 8
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$485 USD
View
A
Retailer 9
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$486 USD
View
A
Retailer 10
-
$508 USD
View
A
Retailer 11
-
$590 USD
View
A
Retailer 12
-
$591 USD
View
A
Retailer 13
-
$618 USD
View
A
Retailer 14
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$627 USD
View
A
Retailer 15
-
$804 USD
View
A
Retailer 16
-
$840 USD
View
A
Retailer 17
-
$854 USD
View
B+
Retailer 18
-
$998 USD
View
Retailer 19
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$1,153 USD
View
Price last confirmed 26 days ago
B+
Retailer 20
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$1,153 USD
View
Retailer 21
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$1,153 USD
View
Price last confirmed 36 days ago
B+
Retailer 22
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$1,277 USD
View
B+
Retailer 23
-
$1,318 USD
View
Retailer 24
-
$1,322 USD
View
Price last confirmed 35 days ago
B+
Retailer 25
-
$1,412 USD
View
B+
Retailer 26
-
$1,432 USD
View
Retailer 27
-
$1,790 USD
View
Price last confirmed 18 days ago
B
Retailer 28
-
$2,330 USD
View
Most Expensive
B
Brilliant Earth
10093536Y · Nov 4
$2,570 USD
View
28 more retailers have this diamond
Prices start from $262 USDSave up to $2,308 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
1.59ct Radiant
$262 USD