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 $562 USD
As of October 31, 2026
Save $3,071 USD (85%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,760 USD 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 October 31, 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,633 USD|Low: $562 USD|High: $3,633 USD|Avg: $1,601 USD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 3$562 USD
Retailer 2$781 USD
Retailer 6$953 USD
Retailer 5$2,040 USD
Retailer 4$2,755 USD
Retailer 1$3,633 USD

17 data points across 6 retailers

6 retailers$562 USD to $3,633 USD

A
Cheapest Retailer
-
$562 USD
Final sale: no returns
B+
Retailer 2
-
$781 USD
View
B+
Retailer 3
-
$2,040 USD
View
B+
Retailer 4
-
$2,755 USD
View
B
Retailer 5
-
$3,633 USD
View
Most Expensive
Brilliant Earth
21267168A · Sep 28
$3,760 USD
View
Price last confirmed 33 days ago
5 more retailers have this diamond
Prices start from $562 USDSave up to $3,071 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
3.89ct Marquise
$562 USD