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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 £385 GBP
$516 USD
As of November 1, 2026
Save £1,668 GBP (81%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,053 GBP 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 £385 to £2,053, a £1,668 spread on the same certified stone. Rare Carat lists it at £2,053. 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
Colour
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: Nov 1
Current: £2,053 GBP|Low: £385 GBP|High: £2,072 GBP|Avg: £1,113 GBP|-0.7%
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£385 GBP
Retailer 2£739 GBP
Rare Carat£2,053 GBP

37 data points across 3 retailers

3 retailers£385 GBP to £2,053 GBP

A
Cheapest Retailer
-
£385 GBP
$516 USD
Final sale: no returns
A
Retailer 2
-
£739 GBP
View
Most Expensive
B+
Rare Carat
812617551 · Oct 28
£2,053 GBP
$2,755 USD
View
2 more retailers have this diamond
Prices start from £385 GBPSave up to £1,668 GBP

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
£385 GBP