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Marquise|Lab Grown|IGI

1.55ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG802628607

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG802628607

Diamond specifications and retailer prices

From $258 USD
As of November 1, 2026
Save $862 USD (77%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,120 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG802628607 or 802628607. Listed at 4 retailers as of October 31, 2026, with prices from $258 to $1,120, a $862 spread on the same certified stone. Brilliant Earth lists it at $1,120. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG802628607
Dimensions11.84 × 5.90 × 3.82 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.84 mm5.90 mm1.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG802628607
Side View
Table 61.0%Crown 36.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 64.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,120 USD|Low: $258 USD|High: $1,430 USD|Avg: $762 USD|-21.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4$258 USD
Retailer 8$479 USD
Retailer 9$482 USD
Retailer 7$509 USD
Retailer 5$535 USD
Retailer 2$552 USD
Retailer 11$853 USD
Retailer 10$923 USD
Retailer 6$1,011 USD
Brilliant Earth$1,120 USD
Retailer 3$1,251 USD

36 data points across 11 retailers

4 retailers$258 USD to $1,120 USD

A
Cheapest Retailer
-
$258 USD
Final sale: no returns
A
Retailer 2
-
$552 USD
£435 GBP
View
Retailer 3
-
$923 USD
View
Price last confirmed 77 days ago
Most Expensive
B+
Brilliant Earth
19921177A · Oct 31
$1,120 USD
View
3 more retailers have this diamond
Prices start from $258 USDSave up to $862 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
1.55ct Marquise
$258 USD