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Marquise|Lab Grown|IGI

3.88ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG812617551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812617551

Diamond specifications and retailer prices

From $516 USD
As of October 31, 2026
Save $2,239 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 28, 2026
View at Rare Carat

About this 3.88ct lab-grown marquise diamond

This 3.88ct 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 LG812617551 or 812617551. Listed at 3 retailers as of October 28, 2026, with prices from $516 to $2,755, a $2,239 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

3.88
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812617551
Dimensions16.04 × 8.10 × 5.20 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.04 mm8.10 mm3.88 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812617551
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 64.2%

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: $516 USD|High: $2,780 USD|Avg: $1,489 USD|-0.7%
Rare Carat
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$516 USD
Retailer 2$992 USD
Rare Carat$2,755 USD

37 data points across 3 retailers

3 retailers$516 USD to $2,755 USD

A
Cheapest Retailer
-
$516 USD
Final sale: no returns
A
Retailer 2
-
$992 USD
£781 GBP
View
Most Expensive
B+
Rare Carat
812617551 · Oct 28
$2,755 USD
View
2 more retailers have this diamond
Prices start from $516 USDSave up to $2,239 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
3.88ct Marquise
$516 USD