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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 $693 AUD
As of November 6, 2026
Save $2,664 AUD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,357 AUD 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 $693 to $3,357, a $2,664 spread on the same certified stone. Brilliant Earth lists it at $3,357. 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
Colour
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: $3,357 AUD|Low: $693 AUD|High: $3,357 AUD|Avg: $1,503 AUD
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$693 AUD
Retailer 4$700 AUD
Retailer 6$766 AUD
Retailer 15$823 AUD
Retailer 7$937 AUD
Retailer 14$1,013 AUD
Retailer 13$1,056 AUD
Retailer 11$1,137 AUD
Retailer 2$1,180 AUD
Retailer 10$1,538 AUD
Retailer 3$1,764 AUD
Retailer 12$1,950 AUD
Retailer 5$2,121 AUD
Retailer 8$2,343 AUD
Retailer 9$2,570 AUD
Brilliant Earth$3,357 AUD

38 data points across 16 retailers

15 retailers$693 AUD to $3,357 AUD

A
Cheapest Retailer
-
$693 AUD
A
Retailer 2
-
$766 AUD
View
A
Retailer 3
-
$823 AUD
View
A
Retailer 4
-
$937 AUD
View
Retailer 5
-
$1,013 AUD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$1,056 AUD
View
B+
Retailer 7
-
$1,137 AUD
View
B+
Retailer 8
-
$1,180 AUD
View
B+
Retailer 9
-
$1,538 AUD
View
B
Retailer 10
-
$1,764 AUD
View
B
Retailer 11
-
$1,950 AUD
View
B
Retailer 12
-
$2,121 AUD
View
B
Retailer 13
-
$2,343 AUD
View
B
Retailer 14
-
$2,570 AUD
View
Most Expensive
B
Brilliant Earth
20697220A · Nov 4
$3,357 AUD
$2,350 USD
View
14 more retailers have this diamond
Prices start from $693 AUDSave up to $2,664 AUD

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
$693 AUD