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Marquise|Lab Grown|IGI

3.89ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG811661440

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811661440

Diamond specifications and retailer prices

From $718 SGD
$562 USD
As of November 1, 2026
Save $3,926 SGD (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,807 SGD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

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 LG811661440 or 811661440. Listed at 6 retailers as of November 1, 2026, with a 546% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811661440
Dimensions16.52 × 7.99 × 5.14 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
16.52 mm7.99 mm3.89 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811661440
Side View
Table 61.0%Crown 36.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,644 SGD|Low: $718 SGD|High: $4,644 SGD|Avg: $2,068 SGD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 3$718 SGD
Retailer 2$998 SGD
Retailer 6$1,218 SGD
Retailer 5$2,608 SGD
Retailer 4$3,522 SGD
Retailer 1$4,644 SGD

16 data points across 6 retailers

6 retailers$718 SGD to $4,644 SGD

A
Cheapest Retailer
-
$718 SGD
$562 USD
Final sale: no returns
B+
Retailer 2
-
$998 SGD
$781 USD
View
B+
Retailer 3
-
$2,608 SGD
$2,040 USD
View
B+
Retailer 4
-
$3,522 SGD
$2,755 USD
View
B
Retailer 5
-
$4,644 SGD
$3,633 USD
View
Most Expensive
Brilliant Earth
21267168A · Sep 28
$4,807 SGD
$3,760 USD
View
Price last confirmed 34 days ago
5 more retailers have this diamond
Prices start from $718 SGDSave up to $3,926 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
3.89ct Marquise
$718 SGD