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Marquise|Lab Grown|IGI

3.89ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG810649574

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG810649574

Diamond specifications and retailer prices

From $518 USD
As of October 31, 2026
Save $2,237 USD (81%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,755 USD at Rare Carat · As of October 25, 2026
View at Rare Carat

About this 3.89ct lab-grown marquise diamond

This 3.89ct 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 LG810649574 or 810649574. Listed at 3 retailers as of October 25, 2026, with prices from $518 to $2,755, a $2,237 spread on the same certified stone. Rare Carat lists it at $2,755. 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

3.89
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810649574
Dimensions16.98 × 8.21 × 5.00 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.98 mm8.21 mm3.89 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810649574
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $2,755 USD|Low: $511 USD|High: $2,770 USD|Avg: $1,493 USD|-0.5%
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$518 USD
Retailer 2$984 USD
Rare Carat$2,755 USD

34 data points across 3 retailers

3 retailers$518 USD to $2,755 USD

A
Cheapest Retailer
-
$518 USD
Final sale: no returns
A
Retailer 2
-
$984 USD
£775 GBP
View
Most Expensive
B
Rare Carat
810649574 · Oct 25
$2,755 USD
View
2 more retailers have this diamond
Prices start from $518 USDSave up to $2,237 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
3.89ct Marquise
$518 USD