CaratHunter
Plans
Marquise|Lab Grown|IGI

3.77ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG812603492

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812603492

Diamond specifications and retailer prices

From $822 AUD
$576 USD
As of November 1, 2026
Save $3,730 AUD (82%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,552 AUD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.77ct lab-grown marquise diamond

This 3.77ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812603492 or 812603492. Listed at 3 retailers as of October 28, 2026, with prices from $822 to $4,552, a $3,730 spread on the same certified stone. Rare Carat lists it at $4,552. 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

3.77
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812603492
Dimensions15.84 × 8.16 × 5.12 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.84 mm8.16 mm3.77 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812603492
Side View
Table 62.0%Crown 37.1°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

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: Nov 1
Current: $4,552 AUD|Low: $813 AUD|High: $4,595 AUD|Avg: $1,849 AUD|-0.9%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3$822 AUD
Retailer 4$1,106 AUD
Retailer 5$1,374 AUD
Retailer 2$1,450 AUD
Rare Carat$4,552 AUD

38 data points across 5 retailers

3 retailers$822 AUD to $4,552 AUD

A
Cheapest Retailer
-
$822 AUD
$576 USD
Final sale: no returns
A
Retailer 2
-
$1,450 AUD
£800 GBP
View
Most Expensive
B
Rare Carat
812603492 · Oct 28
$4,552 AUD
$3,190 USD
View
2 more retailers have this diamond
Prices start from $822 AUDSave up to $3,730 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
3.77ct Marquise
$822 AUD