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Radiant|Lab Grown|IGI

2.90ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG847672931

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

Certificate IGI LG847672931

Diamond specifications and retailer prices

From $321 USD
As of November 2, 2026
Save $2,139 USD (87%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,460 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.9ct lab-grown radiant diamond

This 2.9ct lab-grown radiant sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847672931 or 847672931. Listed at 6 retailers as of October 31, 2026, with prices from $321 to $2,460, a $2,139 spread on the same certified stone. Brilliant Earth lists it at $2,460. 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

2.90
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847672931
Dimensions9.86 × 7.09 × 4.79 mm
L/W Ratio1.39
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.86 mm7.09 mm2.90 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847672931
Side View
Table 63.0%Crown 46.1°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
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 2
Current: $2,460 USD|Low: $492 USD|High: $4,310 USD|Avg: $1,526 USD|-42.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2$492 USD
Retailer 5$555 USD
Retailer 4$646 USD
Retailer 3$1,596 USD
Brilliant Earth$2,460 USD

6 data points across 5 retailers

6 retailers$321 USD to $2,460 USD

A
Cheapest Retailer
-
$321 USD
A
Retailer 2
-
$492 USD
£388 GBP
View
A
Retailer 3
-
$555 USD
View
A
Retailer 4
-
$646 USD
€615 EUR
View
B+
Retailer 5
-
$1,596 USD
£1,257 GBP
View
Most Expensive
B
Brilliant Earth
22258754A · Oct 31
$2,460 USD
View
5 more retailers have this diamond
Prices start from $321 USDSave up to $2,139 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
2.90ct Radiant
$321 USD