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Marquise|Lab Grown|IGI

1.78ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG837672261

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837672261

Diamond specifications and retailer prices

From $1,742 AUD
$1,221 USD
As of November 2, 2026
Save $859 AUD (33%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,601 AUD at Frank Darling · As of November 3, 2026
View at Frank Darling

About this 1.78ct lab-grown marquise diamond

This 1.78ct 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 LG837672261 or 837672261. Listed at 3 retailers as of November 2, 2026, with prices from $1,742 to $2,601, a $859 spread on the same certified stone. Frank Darling lists it at $2,601. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837672261
Dimensions12.67 × 6.14 × 4.01 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.67 mm6.14 mm1.78 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837672261
Side View
Table 57.0%Crown 36.4°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $2,601 AUD|Low: $950 AUD|High: $2,601 AUD|Avg: $1,642 AUD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 3$954 AUD
Retailer 2$1,742 AUD
Retailer 4$2,576 AUD
Frank Darling$2,601 AUD

18 data points across 4 retailers

3 retailers$1,742 AUD to $2,601 AUD

B+
Cheapest Retailer
-
$1,742 AUD
$1,221 USD
Retailer 2
-
$2,576 AUD
$1,805 USD
View
Price last confirmed 19 days ago
Most Expensive
B
Frank Darling
100757705468KD · Nov 3
$2,601 AUD
$1,823 USD
View
2 more retailers have this diamond
Prices start from $1,742 AUDSave up to $859 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.

B+
1.78ct Marquise
$1,742 AUD