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Marquise|Lab Grown|IGI

3.80ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG821619477

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821619477

Diamond specifications and retailer prices

From $624 SGD
$488 USD
As of November 1, 2026
Save $2,885 SGD (82%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,509 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.8ct lab-grown marquise diamond

This 3.8ct 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 LG821619477 or 821619477. Listed at 3 retailers as of October 28, 2026, with prices from $624 to $3,509, a $2,885 spread on the same certified stone. Rare Carat lists it at $3,509. 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

3.80
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821619477
Dimensions16.98 × 8.19 × 4.95 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 mm8.19 mm3.80 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821619477
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,509 SGD|Low: $616 SGD|High: $3,535 SGD|Avg: $1,477 SGD|-0.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3$624 SGD
Retailer 4$812 SGD
Retailer 2$1,170 SGD
Rare Carat$3,509 SGD

37 data points across 4 retailers

3 retailers$624 SGD to $3,509 SGD

A
Cheapest Retailer
-
$624 SGD
$488 USD
Final sale: no returns
A
Retailer 2
-
$1,170 SGD
£721 GBP
View
Most Expensive
B
Rare Carat
821619477 · Oct 28
$3,509 SGD
$2,745 USD
View
2 more retailers have this diamond
Prices start from $624 SGDSave up to $2,885 SGD

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
3.80ct Marquise
$624 SGD