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Marquise|Lab Grown|IGI

1.05ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • IGI LG739543421

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG739543421

Diamond specifications and retailer prices

From $260 USD
As of November 6, 2026
Save $590 USD (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $850 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG739543421 or 739543421. Listed at 7 retailers as of November 4, 2026, with prices from $260 to $850, a $590 spread on the same certified stone. MOH London lists it at $850. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739543421
Dimensions10.01 × 5.27 × 3.39 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.01 mm5.27 mm1.05 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739543421
Side View
Table 57.0%Crown 37.9°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 64.3%

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: Nov 6
Current: $850 USD|Low: $260 USD|High: $862 USD|Avg: $478 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$260 USD
Retailer 2$311 USD
Retailer 6$320 USD
Retailer 3$346 USD
Retailer 4$500 USD
Retailer 8$567 USD
Retailer 7$641 USD
MOH London$850 USD

36 data points across 8 retailers

7 retailers$260 USD to $850 USD

B+
Cheapest Retailer
-
$260 USD
A
Retailer 2
-
$311 USD
View
B+
Retailer 3
-
$320 USD
View
A
Retailer 4
-
$346 USD
View
B+
Retailer 5
-
$500 USD
View
B
Retailer 6
-
$641 USD
View
Most Expensive
B
MOH London
LG739543421 · Nov 4
$850 USD
£669 GBP
View
6 more retailers have this diamond
Prices start from $260 USDSave up to $590 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
1.05ct Marquise
$260 USD