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Marquise|Lab Grown|IGI

3.80ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG843664686

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843664686

Diamond specifications and retailer prices

From $736 AUD
$516 USD
As of October 30, 2026
Save $4,458 AUD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,194 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.8ct lab-grown marquise diamond

This 3.8ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843664686 or 843664686. Listed at 12 retailers as of October 30, 2026, with prices from $736 to $5,194, a $4,458 spread on the same certified stone. Brilliant Earth lists it at $5,194. 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
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843664686
Dimensions16.19 × 8.38 × 5.07 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.19 mm8.38 mm3.80 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843664686
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.5%

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: $5,194 AUD|Low: $736 AUD|High: $5,194 AUD|Avg: $2,618 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$736 AUD
Retailer 6$825 AUD
Retailer 5$1,372 AUD
Retailer 11$1,465 AUD
Retailer 8$2,357 AUD
Retailer 7$2,362 AUD
Retailer 10$2,401 AUD
Retailer 4$2,711 AUD
Retailer 12$3,152 AUD
Retailer 2$3,833 AUD
Retailer 3$4,111 AUD
Brilliant Earth$5,194 AUD

9 data points across 12 retailers

12 retailers$736 AUD to $5,194 AUD

A
Cheapest Retailer
-
$736 AUD
$516 USD
A
Retailer 2
-
$825 AUD
$578 USD
View
Retailer 3
-
$1,372 AUD
€916 EUR
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,465 AUD
$1,027 USD
View
A
Retailer 5
-
$2,357 AUD
$1,652 USD
View
B+
Retailer 6
-
$2,362 AUD
$1,655 USD
View
A
Retailer 7
-
$2,401 AUD
$1,683 USD
View
B+
Retailer 8
-
$2,711 AUD
$1,900 USD
View
B+
Retailer 9
-
$3,152 AUD
$2,209 USD
View
B+
Retailer 10
-
$3,833 AUD
£2,115 GBP
View
B
Retailer 11
-
$4,111 AUD
$2,881 USD
View
Most Expensive
B
Brilliant Earth
21823638A · Oct 30
$5,194 AUD
$3,640 USD
View
11 more retailers have this diamond
Prices start from $736 AUDSave up to $4,458 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
3.80ct Marquise
$736 AUD