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Radiant|Lab Grown|IGI

3.10ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780666217

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

Certificate IGI LG780666217

Diamond specifications and retailer prices

From $2,353 CAD
$1,681 USD
As of October 30, 2026
Save $14,261 CAD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,613 CAD at Brilliant Earth · As of October 30, 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 LG780666217 or 780666217. Listed at 15 retailers as of October 30, 2026, with prices from $2,353 to $16,613, a $14,261 spread on the same certified stone. Brilliant Earth lists it at $16,613. 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 angle41.9°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666217
Dimensions10.18 × 7.26 × 4.73 mm
L/W Ratio1.40
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
10.18 mm7.26 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666217
Side View
Table 61.0%Crown 41.9°Girdle: ThickPavilion 33°Culet: NoneDepth 65.2%

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: Oct 30
Current: $16,613 CAD|Low: $2,353 CAD|High: $23,233 CAD|Avg: $7,349 CAD|-11.7%
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
October 30, 2026
Retailer 2$2,353 CAD
Retailer 4$2,565 CAD
Retailer 13$2,827 CAD
Retailer 15$2,885 CAD
Retailer 9$3,503 CAD
Retailer 7$3,978 CAD
Retailer 14$4,298 CAD
Retailer 3$4,717 CAD
Retailer 5$5,097 CAD
Retailer 12$5,646 CAD
Retailer 11$7,559 CAD
Retailer 10$8,649 CAD
Retailer 6$8,880 CAD
Retailer 8$16,193 CAD
Brilliant Earth$16,613 CAD

33 data points across 15 retailers

15 retailers$2,353 CAD to $16,613 CAD

A
Cheapest Retailer
-
$2,353 CAD
$1,681 USD
A
Retailer 2
-
$2,565 CAD
$1,833 USD
View
A
Retailer 3
-
$2,827 CAD
$2,020 USD
View
A
Retailer 4
-
$2,885 CAD
$2,061 USD
View
A
Retailer 5
-
$3,503 CAD
$2,503 USD
View
A
Retailer 6
-
$3,978 CAD
$2,842 USD
View
Final sale: no returns
A
Retailer 7
-
$4,298 CAD
$3,071 USD
View
A
Retailer 8
-
$4,717 CAD
$3,370 USD
View
Retailer 9
-
$5,097 CAD
€3,468 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$5,646 CAD
$4,034 USD
View
B+
Retailer 11
-
$7,559 CAD
$5,401 USD
View
B+
Retailer 12
-
$8,649 CAD
£4,866 GBP
View
Retailer 13
-
$8,880 CAD
$6,345 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$16,193 CAD
$11,570 USD
View
Most Expensive
B
Brilliant Earth
19065709Y · Oct 30
$16,613 CAD
$11,870 USD
View
14 more retailers have this diamond
Prices start from $2,353 CADSave up to $14,261 CAD

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
$2,353 CAD