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Marquise|Lab Grown|IGI

1.27ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG597370434

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG597370434

Diamond specifications and retailer prices

From $850 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $850 USD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.27ct lab-grown marquise diamond

This 1.27ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG597370434 or 597370434. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597370434
Dimensions10.93 × 5.70 × 3.53 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.93 mm5.70 mm1.27 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597370434
Side View
Table 62.0%Crown 38.4°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $850 USD|Low: $377 USD|High: $2,770 USD|Avg: $861 USD|-36.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
June 2, 2026
Retailer 4$377 USD
Retailer 5$458 USD
Retailer 3$487 USD
Retailer 10$540 USD
Retailer 6$555 USD
Retailer 9$713 USD
Retailer 2$816 USD
Brilliant Earth$850 USD
Retailer 7$1,017 USD
Retailer 8$1,840 USD

17 data points across 10 retailers

1 retailer

B
Brilliant Earth
10373875Y · Nov 4
$850 USD
View

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.

B
1.27ct Marquise
$850 USD