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Marquise|Lab Grown|IGI

5.09ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG712563747

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG712563747

Diamond specifications and retailer prices

From $1,493 USD
As of October 30, 2026
Save $8,777 USD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $11,940 USD at Brilliant Earth · As of October 30, 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 LG712563747 or 712563747. Listed at 23 retailers as of October 30, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712563747
Dimensions18.14 × 8.97 × 5.51 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Top View
18.14 mm8.97 mm5.09 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712563747
Side View
Table 63.0%Crown 35°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.4%

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: $11,940 USD|Low: $1,433 USD|High: $12,310 USD|Avg: $3,664 USD|-3.0%
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
October 31, 2026
Retailer 11$1,493 USD
Retailer 12$1,732 USD
Retailer 2$1,817 USD
Retailer 7$1,905 USD
Retailer 4$1,936 USD
Retailer 3$2,426 USD
Retailer 6$2,710 USD
Retailer 8$3,885 USD
Retailer 5$3,962 USD
Retailer 13$4,668 USD
Retailer 10$5,348 USD
Retailer 9$5,490 USD
Brilliant Earth$11,940 USD

45 data points across 13 retailers

23 retailers$1,493 USD to $10,270 USD

Retailer 1
-
$1,493 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$1,493 USD
View
Retailer 3
-
$1,625 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$1,732 USD
View
Price last confirmed 28 days ago
Retailer 5
-
$1,732 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$1,817 USD
View
Final sale: no returns
B+
Retailer 7
-
$1,905 USD
View
A
Retailer 8
-
$1,936 USD
View
B+
Retailer 9
-
$2,104 USD
View
B+
Retailer 10
-
$2,426 USD
View
B+
Retailer 11
-
$2,710 USD
£2,134 GBP
View
B+
Retailer 12
-
$3,144 USD
View
Retailer 13
-
$3,584 USD
View
Price last confirmed 30 days ago
B
Retailer 14
-
$3,584 USD
View
B+
Retailer 15
-
$3,885 USD
ZAR 62,756 ZAR
View
B
Retailer 16
-
$3,962 USD
£3,120 GBP
View
B
Retailer 17
-
$4,668 USD
View
B
Retailer 18
-
$5,016 USD
View
Retailer 19
-
$5,348 USD
A$8,228 AUD
View
Price last confirmed 22 days ago
B
Retailer 20
-
$5,490 USD
£4,323 GBP
View
B
Retailer 21
-
$6,730 USD
View
B
Retailer 22
-
$10,270 USD
View
Most Expensive
Brilliant Earth
17611050A · Oct 30
$11,940 USD
View
Price under review
22 more retailers have this diamond
Prices start from $1,493 USDSave up to $8,777 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
5.09ct Marquise
$1,493 USD