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Marquise|Lab Grown|IGI

1.55ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG816687418

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816687418

Diamond specifications and retailer prices

From $485 USD
As of November 6, 2026
Save $1,865 USD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,350 USD at Brilliant Earth · As of November 4, 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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816687418 or 816687418. Listed at 15 retailers as of November 4, 2026, with prices from $485 to $2,350, a $1,865 spread on the same certified stone. Brilliant Earth lists it at $2,350. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816687418
Dimensions11.64 × 6.14 × 3.83 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.64 mm6.14 mm1.55 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816687418
Side View
Table 59.0%Crown 34.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.4%

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: $2,350 USD|Low: $485 USD|High: $2,350 USD|Avg: $1,052 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 16$485 USD
Retailer 4$490 USD
Retailer 6$536 USD
Retailer 15$576 USD
Retailer 7$656 USD
Retailer 14$709 USD
Retailer 13$739 USD
Retailer 11$796 USD
Retailer 2$826 USD
Retailer 10$1,077 USD
Retailer 3$1,235 USD
Retailer 12$1,365 USD
Retailer 5$1,485 USD
Retailer 8$1,640 USD
Retailer 9$1,799 USD
Brilliant Earth$2,350 USD

38 data points across 16 retailers

15 retailers$485 USD to $2,350 USD

A
Cheapest Retailer
-
$485 USD
A
Retailer 2
-
$536 USD
View
A
Retailer 3
-
$576 USD
View
A
Retailer 4
-
$656 USD
View
Retailer 5
-
$709 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$739 USD
View
B+
Retailer 7
-
$796 USD
View
B+
Retailer 8
-
$826 USD
View
B+
Retailer 9
-
$1,077 USD
View
B
Retailer 10
-
$1,235 USD
View
B
Retailer 11
-
$1,365 USD
View
B
Retailer 12
-
$1,485 USD
View
B
Retailer 13
-
$1,640 USD
View
B
Retailer 14
-
$1,799 USD
View
Most Expensive
B
Brilliant Earth
20697220A · Nov 4
$2,350 USD
View
14 more retailers have this diamond
Prices start from $485 USDSave up to $1,865 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
$485 USD