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Marquise|Lab Grown|IGI

3.05ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG811621764

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811621764

Diamond specifications and retailer prices

From $400 USD
As of October 30, 2026
Save $2,460 USD (86%) vs most expensive(unlock to see where)
21 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 LG811621764 or 811621764. Listed at 21 retailers as of October 30, 2026, with prices from $400 to $2,860, a $2,460 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811621764
Dimensions15.79 × 7.52 × 4.56 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.79 mm7.52 mm3.05 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811621764
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 60.6%

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: Oct 30
Current: $2,860 USD|Low: $380 USD|High: $2,860 USD|Avg: $1,096 USD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
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Retailer 20
October 31, 2026
Retailer 3$400 USD
Retailer 11$448 USD
Retailer 15$448 USD
Retailer 6$496 USD
Retailer 10$496 USD
Retailer 19$645 USD
Retailer 8$786 USD
Retailer 5$800 USD
Retailer 14$815 USD
Retailer 13$826 USD
Retailer 16$1,044 USD
Retailer 20$1,044 USD
Retailer 18$1,077 USD
Retailer 7$1,248 USD
Retailer 4$1,595 USD
Retailer 12$1,630 USD
Retailer 9$1,832 USD
Retailer 2$1,857 USD
Retailer 17$1,948 USD
Brilliant Earth$2,860 USD

37 data points across 20 retailers

21 retailers$400 USD to $2,860 USD

A
Cheapest Retailer
-
$400 USD
A
Retailer 2
-
$448 USD
View
Final sale: no returns
A
Retailer 3
-
$448 USD
View
A
Retailer 4
-
$496 USD
View
A
Retailer 5
-
$496 USD
View
A
Retailer 6
-
$645 USD
View
B+
Retailer 7
-
$786 USD
View
A
Retailer 8
-
$800 USD
View
A
Retailer 9
-
$815 USD
£641 GBP
View
A
Retailer 10
-
$826 USD
€787 EUR
View
A
Retailer 11
-
$1,044 USD
A$1,606 AUD
View
A
Retailer 12
-
$1,044 USD
View
A
Retailer 13
-
$1,077 USD
ZAR 17,394 ZAR
View
B+
Retailer 14
-
$1,248 USD
View
B+
Retailer 15
-
$1,595 USD
View
B+
Retailer 16
-
$1,630 USD
View
B+
Retailer 17
-
$1,810 USD
View
B+
Retailer 18
-
$1,832 USD
View
B
Retailer 19
-
$1,857 USD
View
B+
Retailer 20
-
$1,948 USD
£1,534 GBP
View
Most Expensive
B
Brilliant Earth
21126135A · Oct 31
$2,860 USD
View
20 more retailers have this diamond
Prices start from $400 USDSave up to $2,460 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
$400 USD