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Marquise|Lab Grown|IGI

3.09ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG754594706

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754594706

Diamond specifications and retailer prices

From $4,613 USD
As of October 30, 2026
Save $15,466 USD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,079 USD at With Clarity · As of October 30, 2026
View at With Clarity

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise 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 LG754594706 or 754594706. Listed at 14 retailers as of October 30, 2026, with prices from $4,613 to $20,079, a $15,466 spread on the same certified stone. With Clarity lists it at $20,079. 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 angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594706
Dimensions14.73 × 7.56 × 4.77 mm
L/W Ratio1.95
Girdle conditionFaceted
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
14.73 mm7.56 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594706
Side View
Table 63.0%Crown 35.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $9,160 USD|Low: $4,041 USD|High: $23,612 USD|Avg: $10,280 USD|-32.1%
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
With Clarity
October 30, 2026
Retailer 6$4,041 USD
Retailer 14$4,613 USD
Retailer 12$4,726 USD
Retailer 3$6,336 USD
Retailer 8$6,528 USD
Retailer 11$7,690 USD
Retailer 2$7,775 USD
Retailer 9$8,293 USD
Retailer 1$9,160 USD
Retailer 4$9,449 USD
Retailer 10$10,517 USD
Retailer 7$11,730 USD
Retailer 13$13,596 USD
Retailer 5$18,013 USD
With Clarity$20,079 USD

39 data points across 15 retailers

14 retailers$4,613 USD to $20,079 USD

A
Cheapest Retailer
-
$4,613 USD
A
Retailer 2
-
$4,726 USD
View
B+
Retailer 3
-
$6,336 USD
HK$49,500 HKD
View
B+
Retailer 4
-
$6,528 USD
£5,140 GBP
View
B+
Retailer 5
-
$7,690 USD
View
B+
Retailer 6
-
$7,775 USD
View
B+
Retailer 7
-
$8,293 USD
€7,898 EUR
View
B+
Retailer 8
-
$9,160 USD
View
B+
Retailer 9
-
$9,449 USD
View
B+
Retailer 10
-
$10,517 USD
£8,281 GBP
View
B+
Retailer 11
-
$11,730 USD
ZAR 189,502 ZAR
View
B
Retailer 12
-
$13,596 USD
View
B
Retailer 13
-
$18,013 USD
View
Most Expensive
B
With Clarity
754594706 · Oct 30
$20,079 USD
View
13 more retailers have this diamond
Prices start from $4,613 USDSave up to $15,466 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 Marquise
$4,613 USD