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Marquise|Lab Grown|IGI

3.05ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG776688221

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG776688221

Diamond specifications and retailer prices

From $406 USD
As of October 30, 2026
Save $2,454 USD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,860 USD at Brilliant Earth · As of October 31, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG776688221 or 776688221. Listed at 20 retailers as of October 30, 2026, with prices from $406 to $2,860, a $2,454 spread on the same certified stone. Brilliant Earth lists it at $2,860. 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
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776688221
Dimensions15.45 × 7.62 × 4.60 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.45 mm7.62 mm3.05 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776688221
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.4%

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: $2,860 USD|Low: $389 USD|High: $2,950 USD|Avg: $1,137 USD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 18
November 1, 2026
Retailer 3$406 USD
Retailer 7$454 USD
Retailer 4$503 USD
Retailer 8$503 USD
Retailer 15$650 USD
Retailer 18$708 USD
Retailer 12$784 USD
Retailer 11$827 USD
Retailer 10$882 USD
Retailer 13$1,058 USD
Retailer 14$1,092 USD
Retailer 17$1,206 USD
Retailer 2$1,463 USD
Retailer 9$1,599 USD
Retailer 6$1,617 USD
Retailer 5$1,883 USD
Retailer 16$1,967 USD
Brilliant Earth$2,860 USD

44 data points across 18 retailers

20 retailers$406 USD to $2,860 USD

A
Cheapest Retailer
-
$406 USD
A
Retailer 2
-
$454 USD
View
A
Retailer 3
-
$503 USD
View
A
Retailer 4
-
$503 USD
View
A
Retailer 5
-
$650 USD
View
B+
Retailer 6
-
$708 USD
View
A
Retailer 7
-
$784 USD
€747 EUR
View
A
Retailer 8
-
$827 USD
£651 GBP
View
A
Retailer 9
-
$882 USD
View
A
Retailer 10
-
$1,046 USD
View
A
Retailer 11
-
$1,058 USD
A$1,628 AUD
View
A
Retailer 12
-
$1,092 USD
ZAR 17,634 ZAR
View
A
Retailer 13
-
$1,206 USD
View
B+
Retailer 14
-
$1,463 USD
£1,152 GBP
View
B+
Retailer 15
-
$1,599 USD
SGD 2,161 SGD
View
B+
Retailer 16
-
$1,617 USD
View
B+
Retailer 17
-
$1,652 USD
View
B+
Retailer 18
-
$1,883 USD
View
B+
Retailer 19
-
$1,967 USD
£1,549 GBP
View
Most Expensive
B
Brilliant Earth
20675670A · Oct 31
$2,860 USD
View
19 more retailers have this diamond
Prices start from $406 USDSave up to $2,454 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
$406 USD