Radiant|Lab Grown|IGI

3.59ct F SI2 Radiant Lab Grown Diamond

ID • F/SI2 • IGI LG636427255

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

Certificate IGI LG636427255

Diamond specifications and retailer prices

From $410 USD
HK$3,200 HKD
As of November 1, 2026
Save $2,390 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,405 USD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 3.59ct lab-grown radiant diamond

This 3.59ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG636427255 or 636427255. Listed at 14 retailers as of October 31, 2026, with a 584% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.59
Carat
F
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636427255
Dimensions10.80 × 7.61 × 5.02 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.80 mm7.61 mm3.59 ctF / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636427255
Side View
Table 65.0%Crown 39.9°Girdle: MediumPavilion 33.1°Culet: NoneDepth 66.0%

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 1
Current: $3,405 USD|Low: $292 USD|High: $4,240 USD|Avg: $1,145 USD|-1.6%
Rare Carat
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
October 31, 2026
Retailer 15$299 USD
Retailer 13$347 USD
Retailer 16$371 USD
Retailer 4$410 USD
Retailer 10$497 USD
Retailer 2$581 USD
Retailer 11$654 USD
Retailer 6$713 USD
Retailer 3$951 USD
Retailer 7$1,087 USD
Retailer 14$1,192 USD
Retailer 5$1,192 USD
Retailer 8$1,218 USD
Retailer 12$1,487 USD
Retailer 9$2,800 USD
Rare Carat$3,405 USD

36 data points across 16 retailers

14 retailers$410 USD to $2,800 USD

Retailer 1
-
$299 USD
Price last confirmed 9 days ago
Retailer 2
-
$347 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$371 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$410 USD
HK$3,200 HKD
View
A
Retailer 5
-
$497 USD
£391 GBP
View
A
Retailer 6
-
$581 USD
€553 EUR
View
A
Retailer 7
-
$654 USD
£515 GBP
View
A
Retailer 8
-
$713 USD
View
B+
Retailer 9
-
$951 USD
View
Retailer 10
-
$1,192 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$1,192 USD
SGD 1,611 SGD
View
B+
Retailer 12
-
$1,487 USD
£1,171 GBP
View
B
Retailer 13
-
$2,800 USD
View
Most Expensive
Rare Carat
88216-C · Oct 19
$3,405 USD
View
Price last confirmed 14 days ago
13 more retailers have this diamond
Prices start from $410 USDSave up to $2,390 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
3.59ct Radiant
$410 USD