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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG803611087

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803611087

Diamond specifications and retailer prices

From $452 AUD
$317 USD
As of November 2, 2026
Save $3,572 AUD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,024 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG803611087 or 803611087. Listed at 21 retailers as of November 2, 2026, with prices from $452 to $4,024, a $3,572 spread on the same certified stone. Do Amore Diamonds lists it at $4,024. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803611087
Dimensions12.20 × 6.36 × 3.98 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.20 mm6.36 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803611087
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

Caratlytics Score

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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 2
Current: $4,024 AUD|Low: $452 AUD|High: $4,024 AUD|Avg: $1,439 AUD
Do Amore Diamonds
Retailer 2
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November 2, 2026
Retailer 24$452 AUD
Retailer 6$525 AUD
Retailer 9$701 AUD
Retailer 2$725 AUD
Retailer 16$729 AUD
Retailer 7$745 AUD
Retailer 10$751 AUD
Retailer 3$785 AUD
Retailer 8$798 AUD
Retailer 15$867 AUD
Retailer 5$959 AUD
Retailer 14$1,341 AUD
Retailer 22$1,439 AUD
Retailer 18$1,492 AUD
Retailer 21$1,612 AUD
Retailer 25$1,648 AUD
Retailer 23$1,748 AUD
Retailer 11$1,844 AUD
Retailer 17$1,896 AUD
Retailer 4$1,993 AUD
Retailer 13$2,266 AUD
Retailer 19$2,423 AUD
Retailer 12$2,439 AUD
Retailer 20$3,382 AUD
Do Amore Diamonds$4,024 AUD

17 data points across 25 retailers

21 retailers$452 AUD to $4,024 AUD

A
Cheapest Retailer
-
$452 AUD
$317 USD
A
Retailer 2
-
$525 AUD
$368 USD
View
A
Retailer 3
-
$701 AUD
$491 USD
View
A
Retailer 4
-
$725 AUD
£400 GBP
View
A
Retailer 5
-
$745 AUD
$522 USD
View
B+
Retailer 6
-
$751 AUD
$526 USD
View
A
Retailer 7
-
$785 AUD
$550 USD
View
A
Retailer 8
-
$798 AUD
$559 USD
View
A
Retailer 9
-
$959 AUD
€640 EUR
View
Retailer 10
-
$1,341 AUD
$940 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$1,439 AUD
View
B+
Retailer 12
-
$1,612 AUD
View
B+
Retailer 13
-
$1,648 AUD
$1,155 USD
View
B+
Retailer 14
-
$1,748 AUD
$1,225 USD
View
B+
Retailer 15
-
$1,844 AUD
CA$1,795 CAD
View
B
Retailer 16
-
$1,993 AUD
$1,397 USD
View
B
Retailer 17
-
$2,266 AUD
$1,588 USD
View
B
Retailer 18
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$2,423 AUD
£1,337 GBP
View
B
Retailer 19
-
$2,439 AUD
$1,709 USD
View
B
Retailer 20
-
$3,382 AUD
$2,370 USD
View
Most Expensive
B
Do Amore Diamonds
27-B1329BF40 · Nov 2
$4,024 AUD
$2,820 USD
View
20 more retailers have this diamond
Prices start from $452 AUDSave up to $3,572 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
1.78ct Marquise
$452 AUD