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Marquise|Lab Grown|IGI

3.17ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG843603231

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843603231

Diamond specifications and retailer prices

From $407 USD
As of November 1, 2026
Save $1,843 USD (82%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,250 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.17ct lab-grown marquise diamond

This 3.17ct 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 LG843603231 or 843603231. Listed at 3 retailers as of October 28, 2026, with prices from $407 to $2,250, a $1,843 spread on the same certified stone. Rare Carat lists it at $2,250. 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

3.17
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843603231
Dimensions15.32 × 7.55 × 4.78 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.32 mm7.55 mm3.17 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843603231
Side View
Table 63.0%Crown 37.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,250 USD|Low: $407 USD|High: $2,250 USD|Avg: $914 USD
Rare Carat
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$407 USD
Retailer 2$850 USD
Rare Carat$2,250 USD

23 data points across 3 retailers

3 retailers$407 USD to $2,250 USD

A
Cheapest Retailer
-
$407 USD
Final sale: no returns
A
Retailer 2
-
$850 USD
£669 GBP
View
Most Expensive
B
Rare Carat
843603231 · Oct 28
$2,250 USD
View
2 more retailers have this diamond
Prices start from $407 USDSave up to $1,843 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
3.17ct Marquise
$407 USD