Radiant|Lab Grown|IGI

3.10ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG800677578

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

Certificate IGI LG800677578

Diamond specifications and retailer prices

From $1,849 USD
As of October 27, 2026
Save $11,191 USD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,040 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.1ct lab-grown radiant diamond

This 3.1ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800677578 or 800677578. Listed at 14 retailers as of October 27, 2026, with prices from $1,849 to $13,040, a $11,191 spread on the same certified stone. Brilliant Earth lists it at $13,040. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.10
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677578
Dimensions10.41 × 7.38 × 4.85 mm
L/W Ratio1.41
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
10.41 mm7.38 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677578
Side View
Table 62.0%Crown 40.1°Girdle: MediumPavilion 34.8°Culet: NoneDepth 65.7%

Caratlytics Score

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A+
Exceptional
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 27
Current: $13,040 USD|Low: $1,849 USD|High: $16,600 USD|Avg: $5,556 USD|-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 29, 2026
Retailer 9$1,849 USD
Retailer 3$2,012 USD
Retailer 8$2,220 USD
Retailer 11$2,236 USD
Retailer 14$2,542 USD
Retailer 5$2,842 USD
Retailer 7$3,241 USD
Retailer 10$3,362 USD
Retailer 12$3,608 USD
Retailer 4$3,972 USD
Retailer 6$6,118 USD
Retailer 2$6,769 USD
Retailer 13$12,720 USD
Brilliant Earth$13,040 USD

31 data points across 14 retailers

14 retailers$1,849 USD to $13,040 USD

A+
Cheapest Retailer
-
$1,849 USD
A
Retailer 2
-
$2,012 USD
View
A
Retailer 3
-
$2,220 USD
View
A
Retailer 4
-
$2,236 USD
View
A
Retailer 5
-
$2,542 USD
View
A
Retailer 6
-
$2,842 USD
View
Final sale: no returns
A
Retailer 7
-
$3,241 USD
View
A
Retailer 8
-
$3,362 USD
View
A
Retailer 9
-
$3,608 USD
View
B+
Retailer 10
-
$3,972 USD
€3,783 EUR
View
B
Retailer 11
-
$6,118 USD
View
Price last confirmed 86 days ago
B+
Retailer 12
-
$6,769 USD
£5,330 GBP
View
B
Retailer 13
-
$12,720 USD
View
Most Expensive
B
Brilliant Earth
20497336Y · Oct 29
$13,040 USD
View
13 more retailers have this diamond
Prices start from $1,849 USDSave up to $11,191 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+
3.10ct Radiant
$1,849 USD