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Marquise|Lab Grown|IGI

5.09ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG845618761

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845618761

Diamond specifications and retailer prices

From $1,997 AUD
$1,403 USD
As of October 29, 2026
Save $8,651 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,649 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845618761 or 845618761. Listed at 16 retailers as of October 29, 2026, with prices from $1,997 to $10,649, a $8,651 spread on the same certified stone. Brilliant Earth lists it at $10,649. 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

5.09
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845618761
Dimensions17.04 × 9.04 × 5.76 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.04 mm9.04 mm5.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845618761
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.7%

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 29
Current: $10,649 AUD|Low: $1,997 AUD|High: $17,126 AUD|Avg: $4,463 AUD|-37.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 3$1,997 AUD
Retailer 10$2,022 AUD
Retailer 13$2,086 AUD
Retailer 4$2,740 AUD
Retailer 9$2,770 AUD
Retailer 7$3,275 AUD
Retailer 16$3,758 AUD
Retailer 8$3,861 AUD
Retailer 11$3,892 AUD
Retailer 2$5,294 AUD
Retailer 14$5,299 AUD
Retailer 5$5,778 AUD
Retailer 12$6,187 AUD
Retailer 6$6,706 AUD
Retailer 15$6,939 AUD
Brilliant Earth$10,649 AUD

10 data points across 16 retailers

16 retailers$1,997 AUD to $10,649 AUD

A
Cheapest Retailer
-
$1,997 AUD
$1,403 USD
Final sale: no returns
A
Retailer 2
-
$2,022 AUD
$1,420 USD
View
A
Retailer 3
-
$2,086 AUD
£1,154 GBP
View
A
Retailer 4
-
$2,740 AUD
$1,925 USD
View
A
Retailer 5
-
$2,770 AUD
£1,532 GBP
View
Retailer 6
-
$3,275 AUD
€2,191 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$3,758 AUD
$2,640 USD
View
B+
Retailer 8
-
$3,861 AUD
$2,712 USD
View
B+
Retailer 9
-
$3,892 AUD
ZAR 44,166 ZAR
View
B
Retailer 10
-
$5,294 AUD
£2,928 GBP
View
B+
Retailer 11
-
$5,299 AUD
$3,722 USD
View
B
Retailer 12
-
$5,778 AUD
$4,059 USD
View
B
Retailer 13
-
$6,187 AUD
£3,422 GBP
View
B
Retailer 14
-
$6,706 AUD
$4,711 USD
View
B
Retailer 15
-
$6,939 AUD
$4,874 USD
View
Most Expensive
B
Brilliant Earth
22284482A · Oct 31
$10,649 AUD
$7,480 USD
View
15 more retailers have this diamond
Prices start from $1,997 AUDSave up to $8,651 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
5.09ct Marquise
$1,997 AUD