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Marquise|Lab Grown|IGI

3.90ct D VS2 Marquise Lab Grown Diamond

ID • D/VS2 • IGI LG800657686

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800657686

Diamond specifications and retailer prices

From $1,683 AUD
$1,182 USD
As of October 30, 2026
Save $4,815 AUD (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,497 AUD at Frank Darling · As of October 31, 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 D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG800657686 or 800657686. Listed at 9 retailers as of October 30, 2026, with prices from $1,683 to $6,497, a $4,815 spread on the same certified stone. Frank Darling lists it at $6,497. 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
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800657686
Dimensions15.66 × 8.33 × 5.21 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.66 mm8.33 mm3.90 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800657686
Side View
Table 63.0%Crown 36.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.5%

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: Oct 30
Current: $6,497 AUD|Low: $1,683 AUD|High: $6,881 AUD|Avg: $3,705 AUD|-5.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7$1,683 AUD
Retailer 3$2,096 AUD
Retailer 8$2,099 AUD
Retailer 6$2,160 AUD
Retailer 4$2,499 AUD
Retailer 9$4,006 AUD
Retailer 2$4,906 AUD
Retailer 5$5,594 AUD
Frank Darling$6,497 AUD

27 data points across 9 retailers

9 retailers$1,683 AUD to $6,497 AUD

A
Cheapest Retailer
-
$1,683 AUD
$1,182 USD
A
Retailer 2
-
$2,096 AUD
$1,472 USD
View
Retailer 3
-
$2,099 AUD
$1,474 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$2,160 AUD
$1,517 USD
View
A
Retailer 5
-
$2,499 AUD
€1,672 EUR
View
Retailer 6
-
$4,006 AUD
$2,814 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
$4,906 AUD
View
B
Retailer 8
-
$5,594 AUD
£3,094 GBP
View
Most Expensive
B
Frank Darling
100756109481BD · Oct 31
$6,497 AUD
$4,564 USD
View
8 more retailers have this diamond
Prices start from $1,683 AUDSave up to $4,815 AUD

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
$1,683 AUD