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Marquise|Lab Grown|IGI

1.45ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG778628373

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778628373

Diamond specifications and retailer prices

From $336 AUD
As of November 4, 2026
Save $1,788 AUD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,124 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.45ct lab-grown marquise diamond

This 1.45ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778628373 or 778628373. Listed at 19 retailers as of November 4, 2026, with prices from $336 to $2,124, a $1,788 spread on the same certified stone. Brilliant Earth lists it at $2,124. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778628373
Dimensions11.45 × 5.93 × 3.70 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.45 mm5.93 mm1.45 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778628373
Side View
Table 60.0%Crown 35.7°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 62.4%

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 4
Current: $2,124 AUD|Low: $324 AUD|High: $2,751 AUD|Avg: $978 AUD|-22.8%
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 3$336 AUD
Retailer 14$375 AUD
Retailer 4$418 AUD
Retailer 7$418 AUD
Retailer 6$706 AUD
Retailer 12$720 AUD
Retailer 2$780 AUD
Retailer 13$860 AUD
Retailer 8$880 AUD
Retailer 10$1,021 AUD
Retailer 11$1,109 AUD
Retailer 5$1,341 AUD
Retailer 15$1,386 AUD
Retailer 16$1,440 AUD
Retailer 9$1,666 AUD
Brilliant Earth$2,124 AUD

45 data points across 16 retailers

19 retailers$336 AUD to $2,124 AUD

A
Cheapest Retailer
-
$336 AUD
A
Retailer 2
-
$375 AUD
View
Final sale: no returns
A
Retailer 3
-
$391 AUD
View
Retailer 4
-
$418 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$418 AUD
View
A
Retailer 6
-
$706 AUD
View
A
Retailer 7
-
$720 AUD
View
A
Retailer 8
-
$780 AUD
View
A
Retailer 9
-
$860 AUD
View
B+
Retailer 10
-
$880 AUD
View
B+
Retailer 11
-
$919 AUD
View
B+
Retailer 12
-
$1,021 AUD
View
B+
Retailer 13
-
$1,109 AUD
View
B+
Retailer 14
-
$1,341 AUD
View
Retailer 15
-
$1,386 AUD
View
Price last confirmed 7 days ago
B
Retailer 16
-
$1,414 AUD
View
Retailer 17
-
$1,440 AUD
View
Price last confirmed 8 days ago
B
Retailer 18
-
$1,666 AUD
View
Most Expensive
B
Brilliant Earth
18170094A · Nov 4
$2,124 AUD
$1,490 USD
View
18 more retailers have this diamond
Prices start from $336 AUDSave up to $1,788 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
1.45ct Marquise
$336 AUD