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Marquise|Lab Grown|IGI

3.90ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG811657569

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811657569

Diamond specifications and retailer prices

From $557 USD
As of October 31, 2026
Save $3,085 USD (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,642 USD at Frank Darling · As of November 1, 2026
View at Frank Darling

About this 3.9ct lab-grown marquise diamond

This 3.9ct 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 LG811657569 or 811657569. Listed at 5 retailers as of October 31, 2026, with prices from $557 to $3,642, a $3,085 spread on the same certified stone. Frank Darling lists it at $3,642. 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

3.90
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811657569
Dimensions16.42 × 8.41 × 5.03 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.42 mm8.41 mm3.90 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811657569
Side View
Table 63.0%Crown 35°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.8%

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: $3,642 USD|Low: $557 USD|High: $3,770 USD|Avg: $1,750 USD|+0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5$557 USD
Retailer 6$777 USD
Retailer 9$865 USD
Retailer 8$946 USD
Retailer 3$1,076 USD
Retailer 4$1,319 USD
Retailer 12$1,434 USD
Retailer 10$1,707 USD
Retailer 7$2,022 USD
Retailer 2$2,590 USD
Frank Darling$3,642 USD
Retailer 11$3,770 USD

17 data points across 12 retailers

5 retailers$557 USD to $3,642 USD

A
Cheapest Retailer
-
$557 USD
Final sale: no returns
B+
Retailer 2
-
$777 USD
View
B+
Retailer 3
-
$2,022 USD
View
Retailer 4
-
$2,590 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Frank Darling
100743475613KD · Nov 1
$3,642 USD
View
4 more retailers have this diamond
Prices start from $557 USDSave up to $3,085 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
3.90ct Marquise
$557 USD