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Marquise|Lab Grown|IGI

6.09ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG717578690

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG717578690

Diamond specifications and retailer prices

From $2,262 USD
CA$3,142 CAD
As of November 2, 2026
Save $1,002 USD (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,264 USD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 6.09ct lab-grown marquise diamond

This 6.09ct lab-grown marquise sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG717578690 or 717578690. Listed at 2 retailers as of November 1, 2026, with prices from $2,262 to $3,264, a $1,002 spread on the same certified stone. The Diamond Guys lists it at $3,264. 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

6.09
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717578690
Dimensions18.97 × 9.44 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Top View
18.97 mm9.44 mm6.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717578690
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $1,151 USD|Low: $818 USD|High: $5,620 USD|Avg: $2,532 USD|-14.9%
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
The Diamond Guys
September 16, 2026
Retailer 8$818 USD
Retailer 1$1,151 USD
Retailer 5$1,162 USD
Retailer 3$1,285 USD
Retailer 2$1,303 USD
Retailer 14$1,639 USD
Retailer 7$1,883 USD
Retailer 12$2,160 USD
Retailer 13$2,262 USD
Retailer 10$2,552 USD
Retailer 6$2,743 USD
The Diamond Guys$3,264 USD
Retailer 4$4,311 USD
Retailer 9$4,840 USD
Retailer 11$5,348 USD

56 data points across 15 retailers

2 retailers$2,262 USD to $3,264 USD

B+
Cheapest Retailer
-
$2,262 USD
CA$3,142 CAD
Most Expensive
B
The Diamond Guys
1954435164 · Nov 1
$3,264 USD
View
1 more retailer has this diamond
Prices start from $2,262 USDSave up to $1,002 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.

B+
6.09ct Marquise
$2,262 USD