Marquise|Lab Grown|IGI

3.88ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG812648784

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812648784

Diamond specifications and retailer prices

From $516 USD
As of October 31, 2026
Save $3,334 USD (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,850 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG812648784 or 812648784. Listed at 4 retailers as of October 31, 2026, with prices from $516 to $3,850, a $3,334 spread on the same certified stone. Brilliant Earth lists it at $3,850. 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 angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812648784
Dimensions16.52 × 8.31 × 5.00 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.52 mm8.31 mm3.88 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812648784
Side View
Table 63.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,850 USD|Low: $510 USD|High: $3,850 USD|Avg: $2,211 USD|+2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$516 USD
Retailer 2$982 USD
Retailer 4$2,755 USD
Brilliant Earth$3,850 USD

36 data points across 4 retailers

4 retailers$516 USD to $3,850 USD

A
Cheapest Retailer
-
$516 USD
Final sale: no returns
A
Retailer 2
-
$982 USD
£773 GBP
View
Retailer 3
-
$2,755 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21247800A · Oct 31
$3,850 USD
View
3 more retailers have this diamond
Prices start from $516 USDSave up to $3,334 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