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Radiant|Lab Grown|IGI

3.09ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG780663846

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

Certificate IGI LG780663846

Diamond specifications and retailer prices

From $3,617 CAD
$2,584 USD
As of October 29, 2026
Save $14,760 CAD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $18,377 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.09ct lab-grown radiant diamond

This 3.09ct 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 LG780663846 or 780663846. Listed at 13 retailers as of October 29, 2026, with prices from $3,617 to $18,377, a $14,760 spread on the same certified stone. Brilliant Earth lists it at $18,377. 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

3.09
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663846
Dimensions10.77 × 7.25 × 4.64 mm
L/W Ratio1.49
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
10.77 mm7.25 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663846
Side View
Table 65.0%Crown 39.6°Girdle: MED-STKPavilion 33.3°Culet: NoneDepth 64.0%

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: Oct 29
Current: $18,377 CAD|Low: $3,617 CAD|High: $18,391 CAD|Avg: $8,876 CAD|+1.0%
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
October 30, 2026
Retailer 10$3,617 CAD
Retailer 12$4,210 CAD
Retailer 11$4,641 CAD
Retailer 2$4,745 CAD
Retailer 9$5,207 CAD
Retailer 5$5,773 CAD
Retailer 6$8,007 CAD
Retailer 8$9,039 CAD
Retailer 13$9,291 CAD
Retailer 7$9,405 CAD
Retailer 4$12,057 CAD
Retailer 3$13,349 CAD
Brilliant Earth$18,377 CAD

40 data points across 13 retailers

13 retailers$3,617 CAD to $18,377 CAD

A
Cheapest Retailer
-
$3,617 CAD
$2,584 USD
A
Retailer 2
-
$4,210 CAD
HK$23,500 HKD
View
A
Retailer 3
-
$4,641 CAD
$3,316 USD
View
A
Retailer 4
-
$4,745 CAD
£2,670 GBP
View
B+
Retailer 5
-
$5,207 CAD
$3,720 USD
View
B+
Retailer 6
-
$5,773 CAD
€3,928 EUR
View
B+
Retailer 7
-
$8,007 CAD
ZAR 92,422 ZAR
View
B+
Retailer 8
-
$9,039 CAD
$6,458 USD
View
B+
Retailer 9
-
$9,291 CAD
$6,638 USD
View
B+
Retailer 10
-
$9,405 CAD
£5,291 GBP
View
B
Retailer 11
-
$12,057 CAD
$8,614 USD
View
B
Retailer 12
-
$13,349 CAD
$9,538 USD
View
Most Expensive
B
Brilliant Earth
19712348A · Oct 29
$18,377 CAD
$13,130 USD
View
12 more retailers have this diamond
Prices start from $3,617 CADSave up to $14,760 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
3.09ct Radiant
$3,617 CAD