Radiant|Lab Grown|IGI

3.09ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG787605420

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG787605420

Diamond specifications and retailer prices

From $2,849 USD
As of October 27, 2026
Save $2,579 USD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,517 USD at Taylor and Hart · As of October 5, 2026
View at Taylor and Hart

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 LG787605420 or 787605420. Listed at 13 retailers as of October 26, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle27.3°
Pavilion angle43.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787605420
Dimensions10.07 × 6.97 × 4.46 mm
L/W Ratio1.44
Culet sizeLarge
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
10.07 mm6.97 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787605420
Side View
Table 67.0%Crown 27.3°Girdle: MediumPavilion 43.9°Culet: LargeDepth 64.0%

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 27
Current: $3,100 USD|Low: $2,278 USD|High: $11,554 USD|Avg: $5,344 USD
Retailer 1
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
Retailer 18
Taylor and Hart
October 14, 2026
Retailer 10$2,367 USD
Retailer 11$2,849 USD
Retailer 1$3,100 USD
Retailer 7$3,301 USD
Retailer 8$3,305 USD
Retailer 13$3,305 USD
Retailer 5$3,465 USD
Retailer 4$3,555 USD
Retailer 17$3,656 USD
Retailer 14$4,543 USD
Retailer 15$4,586 USD
Retailer 6$4,956 USD
Retailer 16$5,428 USD
Retailer 3$5,700 USD
Retailer 18$7,702 USD
Retailer 12$7,719 USD
Retailer 2$8,479 USD
Retailer 9$9,648 USD
Taylor and Hart$11,517 USD

24 data points across 19 retailers

13 retailers$2,849 USD to $5,428 USD

A
Cheapest Retailer
-
$2,849 USD
A
Retailer 2
-
$3,100 USD
View
A
Retailer 3
-
$3,305 USD
View
B+
Retailer 4
-
$3,656 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,543 USD
View
Retailer 6
-
$4,956 USD
View
Price last confirmed 24 days ago
B
Retailer 7
-
$5,428 USD
View
Retailer 8
-
$5,700 USD
£4,488 GBP
View
Price last confirmed 25 days ago
Retailer 9
-
$7,702 USD
ZAR 124,434 ZAR
View
Price last confirmed 27 days ago
Retailer 10
-
$7,719 USD
View
Price last confirmed 19 days ago
Retailer 11
-
$8,479 USD
£6,676 GBP
View
Price last confirmed 25 days ago
Retailer 12
-
$9,648 USD
View
Price last confirmed 26 days ago
Most Expensive
Taylor and Hart
U4TAP7E · Oct 5
$11,517 USD
View
Price last confirmed 25 days ago
12 more retailers have this diamond
Prices start from $2,849 USDSave up to $2,579 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
3.09ct Radiant
$2,849 USD