Marquise|Lab Grown|IGI

3.05ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG845601708

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845601708

Diamond specifications and retailer prices

From $829 USD
As of October 30, 2026
Save $2,796 USD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,940 USD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845601708 or 845601708. Listed at 13 retailers as of October 29, 2026, with a 337% 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

3.05
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845601708
Dimensions15.45 × 7.38 × 4.74 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.45 mm7.38 mm3.05 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845601708
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 64.2%

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: $3,940 USD|Low: $829 USD|High: $3,940 USD|Avg: $2,242 USD
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
October 31, 2026
Retailer 15$829 USD
Retailer 10$902 USD
Retailer 9$1,114 USD
Retailer 13$1,256 USD
Retailer 14$1,294 USD
Retailer 4$1,548 USD
Retailer 8$1,550 USD
Retailer 6$1,558 USD
Retailer 2$2,172 USD
Retailer 11$2,211 USD
Retailer 3$2,704 USD
Retailer 7$3,234 USD
Retailer 5$3,448 USD
Retailer 12$3,625 USD
Brilliant Earth$3,940 USD

10 data points across 15 retailers

13 retailers$829 USD to $3,625 USD

A
Cheapest Retailer
-
$829 USD
A
Retailer 2
-
$902 USD
View
A
Retailer 3
-
$1,114 USD
HK$8,700 HKD
View
A
Retailer 4
-
$1,256 USD
View
Retailer 5
-
$1,294 USD
£1,019 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$1,548 USD
View
B+
Retailer 7
-
$1,550 USD
View
B+
Retailer 8
-
$2,172 USD
A$3,341 AUD
View
B+
Retailer 9
-
$2,211 USD
View
B
Retailer 10
-
$2,704 USD
View
B
Retailer 11
-
$3,234 USD
SGD 4,370 SGD
View
B
Retailer 12
-
$3,625 USD
£2,854 GBP
View
Most Expensive
Brilliant Earth
21783662A · Oct 14
$3,940 USD
View
Price last confirmed 17 days ago
12 more retailers have this diamond
Prices start from $829 USDSave up to $2,796 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
3.05ct Marquise
$829 USD