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Marquise|Lab Grown|IGI

1.91ct F IF Marquise Lab Grown Diamond

VG • F/IF • IGI LG627482530

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG627482530

Diamond specifications and retailer prices

From $605 USD
As of November 2, 2026
Save $2,650 USD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,255 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.91ct lab-grown marquise diamond

This 1.91ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG627482530 or 627482530. Listed at 20 retailers as of November 1, 2026, with prices from $605 to $3,255, a $2,650 spread on the same certified stone. MOH London lists it at $3,255. 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

1.91
Carat
F
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627482530
Dimensions12.41 × 6.47 × 4.08 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.41 mm6.47 mm1.91 ctF / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627482530
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $3,255 USD|Low: $605 USD|High: $3,319 USD|Avg: $1,752 USD|-0.7%
MOH London
Retailer 2
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Retailer 20
November 2, 2026
Retailer 20$605 USD
Retailer 14$677 USD
Retailer 6$750 USD
Retailer 18$750 USD
Retailer 2$772 USD
Retailer 15$880 USD
Retailer 5$975 USD
Retailer 12$1,037 USD
Retailer 7$1,151 USD
Retailer 13$1,288 USD
Retailer 19$1,641 USD
Retailer 16$1,860 USD
Retailer 4$1,972 USD
Retailer 9$2,179 USD
Retailer 8$2,393 USD
Retailer 3$2,421 USD
Retailer 17$2,775 USD
Retailer 11$3,013 USD
Retailer 10$3,103 USD
MOH London$3,255 USD

36 data points across 20 retailers

20 retailers$605 USD to $3,255 USD

A
Cheapest Retailer
-
$605 USD
A
Retailer 2
-
$677 USD
View
A
Retailer 3
-
$750 USD
View
Retailer 4
-
$750 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$772 USD
£608 GBP
View
A
Retailer 6
-
$880 USD
View
A
Retailer 7
-
$975 USD
View
Retailer 8
-
$1,037 USD
HK$8,100 HKD
View
Price last confirmed 59 days ago
A
Retailer 9
-
$1,151 USD
View
A
Retailer 10
-
$1,288 USD
ZAR 20,815 ZAR
View
B+
Retailer 11
-
$1,641 USD
View
B+
Retailer 12
-
$1,860 USD
View
B+
Retailer 13
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$1,972 USD
View
B+
Retailer 14
-
$2,179 USD
£1,716 GBP
View
B
Retailer 15
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$2,393 USD
View
B
Retailer 16
-
$2,421 USD
View
B
Retailer 17
-
$2,775 USD
View
Retailer 18
-
$3,013 USD
SGD 4,071 SGD
View
Price last confirmed 25 days ago
Retailer 19
-
$3,103 USD
A$4,774 AUD
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
LG627482530 · Nov 1
$3,255 USD
£2,563 GBP
View
19 more retailers have this diamond
Prices start from $605 USDSave up to $2,650 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
1.91ct Marquise
$605 USD