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Radiant|Lab Grown|IGI

1.59ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG739595146

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

Certificate IGI LG739595146

Diamond specifications and retailer prices

From €163 EUR
$182 USD
As of October 30, 2026
Save €1,001 EUR (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,164 EUR at Brilliant Earth · As of October 31, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG739595146 or 739595146. Listed at 17 retailers as of October 30, 2026, with prices from €163 to €1,164, a €1,001 spread on the same certified stone. Brilliant Earth lists it at €1,164. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.59
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739595146
Dimensions7.95 × 5.86 × 3.95 mm
L/W Ratio1.36
Culet sizePointed
Top View
7.95 mm5.86 mm1.59 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739595146
Side View
Table 65.0%Crown 45.7°Girdle: MediumPavilion 36°Culet: NoneDepth 67.4%

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: Oct 30
Current: €1,164 EUR|Low: €156 EUR|High: €1,199 EUR|Avg: €491 EUR|-3.0%
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
October 31, 2026
Retailer 10€163 EUR
Retailer 14€189 EUR
Retailer 3€201 EUR
Retailer 11€201 EUR
Retailer 6€273 EUR
Retailer 2€341 EUR
Retailer 7€364 EUR
Retailer 5€401 EUR
Retailer 4€437 EUR
Retailer 9€509 EUR
Retailer 12€648 EUR
Retailer 13€931 EUR
Retailer 8€944 EUR
Brilliant Earth€1,164 EUR

44 data points across 14 retailers

17 retailers€163 EUR to €1,164 EUR

A
Cheapest Retailer
-
€163 EUR
$182 USD
A
Retailer 2
-
€189 EUR
$211 USD
View
A
Retailer 3
-
€201 EUR
$225 USD
View
A
Retailer 4
-
€201 EUR
$225 USD
View
A
Retailer 5
-
€229 EUR
HK$2,000 HKD
View
B+
Retailer 6
-
€273 EUR
$305 USD
View
A
Retailer 7
-
€341 EUR
View
A
Retailer 8
-
€364 EUR
£320 GBP
View
A
Retailer 9
-
€401 EUR
$448 USD
View
B+
Retailer 10
-
€437 EUR
$488 USD
View
B+
Retailer 11
-
€474 EUR
$530 USD
View
B+
Retailer 12
-
€509 EUR
$569 USD
View
B+
Retailer 13
-
€648 EUR
$724 USD
View
B+
Retailer 14
-
€661 EUR
SGD 998 SGD
View
Retailer 15
-
€931 EUR
$1,040 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
€944 EUR
£830 GBP
View
Most Expensive
B
Brilliant Earth
20675146A · Oct 31
€1,164 EUR
$1,300 USD
View
16 more retailers have this diamond
Prices start from €163 EURSave up to €1,001 EUR

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
€163 EUR