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Marquise|Lab Grown|IGI

3.50ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG752523278

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752523278

Diamond specifications and retailer prices

From $1,514 USD
CA$2,103 CAD
As of November 2, 2026
Save $670 USD (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,184 USD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.5ct lab-grown marquise diamond

This 3.5ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG752523278 or 752523278. Listed at 2 retailers as of November 1, 2026, with prices from $1,514 to $2,184, a $670 spread on the same certified stone. The Diamond Guys lists it at $2,184. 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

3.50
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752523278
Dimensions16.38 × 7.80 × 4.87 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Top View
16.38 mm7.80 mm3.50 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752523278
Side View
Table 63.0%Crown 35°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.4%

Caratlytics Score

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

Last verified: Nov 2
Current: $1,250 USD|Low: $531 USD|High: $3,595 USD|Avg: $1,366 USD|-21.1%
Retailer 1
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Retailer 5
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Retailer 9
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Retailer 14
The Diamond Guys
August 3, 2026
Retailer 6$667 USD
Retailer 3$705 USD
Retailer 4$718 USD
Retailer 8$947 USD
Retailer 12$974 USD
Retailer 14$1,075 USD
Retailer 11$1,243 USD
Retailer 1$1,250 USD
Retailer 5$1,463 USD
Retailer 9$1,514 USD
Retailer 10$1,860 USD
Retailer 2$2,024 USD
The Diamond Guys$2,184 USD
Retailer 7$3,268 USD
Retailer 13$3,450 USD

57 data points across 15 retailers

2 retailers$1,514 USD to $2,184 USD

B+
Cheapest Retailer
-
$1,514 USD
CA$2,103 CAD
Most Expensive
B
The Diamond Guys
1958037485 · Nov 1
$2,184 USD
View
1 more retailer has this diamond
Prices start from $1,514 USDSave up to $670 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+
3.50ct Marquise
$1,514 USD