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Radiant|Lab Grown|IGI

2.80ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG579301666

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

Certificate IGI LG579301666

Diamond specifications and retailer prices

From $499 USD
HK$3,900 HKD
As of November 1, 2026
Save $3,111 USD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,610 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.8ct lab-grown radiant diamond

This 2.8ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG579301666 or 579301666. Listed at 17 retailers as of October 31, 2026, with prices from $499 to $3,610, a $3,111 spread on the same certified stone. Brilliant Earth lists it at $3,610. 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

2.80
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579301666
Dimensions9.97 × 7.00 × 4.54 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.97 mm7.00 mm2.80 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579301666
Side View
Table 67.0%Crown 42.4°Girdle: STK-THKPavilion 35.5°Culet: NoneDepth 64.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,610 USD|Low: $325 USD|High: $3,730 USD|Avg: $1,248 USD|-3.2%
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
Retailer 17
November 1, 2026
Retailer 7$456 USD
Retailer 16$499 USD
Retailer 6$506 USD
Retailer 10$571 USD
Retailer 17$600 USD
Retailer 13$724 USD
Retailer 11$815 USD
Retailer 4$842 USD
Retailer 5$997 USD
Retailer 14$997 USD
Retailer 12$1,040 USD
Retailer 8$1,109 USD
Retailer 3$1,442 USD
Retailer 15$1,493 USD
Retailer 2$1,765 USD
Retailer 9$1,859 USD
Brilliant Earth$3,610 USD

23 data points across 17 retailers

17 retailers$499 USD to $3,610 USD

Retailer 1
-
$408 USD
Price last confirmed 32 days ago
Retailer 2
-
$457 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
$499 USD
HK$3,900 HKD
View
Retailer 4
-
$500 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$571 USD
£450 GBP
View
A
Retailer 6
-
$600 USD
View
B+
Retailer 7
-
$724 USD
View
A
Retailer 8
-
$815 USD
£642 GBP
View
A
Retailer 9
-
$997 USD
View
A
Retailer 10
-
$997 USD
View
B+
Retailer 11
-
$1,040 USD
View
Retailer 12
-
$1,307 USD
View
Price last confirmed 31 days ago
B+
Retailer 13
-
$1,442 USD
SGD 1,949 SGD
View
B+
Retailer 14
-
$1,493 USD
View
Retailer 15
-
$1,628 USD
View
Price last confirmed 31 days ago
B+
Retailer 16
-
$1,765 USD
£1,390 GBP
View
Most Expensive
B
Brilliant Earth
22350171A · Oct 31
$3,610 USD
View
16 more retailers have this diamond
Prices start from $499 USDSave up to $3,111 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
2.80ct Radiant
$499 USD