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Marquise|Lab Grown|IGI

1.56ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG837656503

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837656503

Diamond specifications and retailer prices

From $430 AUD
$302 USD
As of November 1, 2026
Save $2,004 AUD (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,434 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837656503 or 837656503. Listed at 23 retailers as of October 30, 2026, with prices from $430 to $2,434, a $2,004 spread on the same certified stone. Brilliant Earth lists it at $2,434. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837656503
Dimensions11.71 × 6.17 × 3.71 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
11.71 mm6.17 mm1.56 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837656503
Side View
Table 63.0%Crown 35.4°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,434 AUD|Low: $430 AUD|High: $3,160 AUD|Avg: $1,175 AUD|-23.0%
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
Retailer 17
November 2, 2026
Retailer 9$430 AUD
Retailer 5$478 AUD
Retailer 2$533 AUD
Retailer 14$638 AUD
Retailer 16$705 AUD
Retailer 8$804 AUD
Retailer 11$825 AUD
Retailer 10$841 AUD
Retailer 17$845 AUD
Retailer 15$1,113 AUD
Retailer 13$1,133 AUD
Retailer 7$1,539 AUD
Retailer 4$1,568 AUD
Retailer 3$1,623 AUD
Retailer 6$1,842 AUD
Retailer 12$1,918 AUD
Brilliant Earth$2,434 AUD

35 data points across 17 retailers

23 retailers$430 AUD to $2,434 AUD

Retailer 1
-
$386 AUD
$271 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$430 AUD
$302 USD
View
Final sale: no returns
Retailer 3
-
$448 AUD
$315 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$478 AUD
$336 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$478 AUD
$336 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$533 AUD
£295 GBP
View
B+
Retailer 7
-
$638 AUD
$448 USD
View
A
Retailer 8
-
$705 AUD
$495 USD
View
A
Retailer 9
-
$804 AUD
$565 USD
View
A
Retailer 10
-
$825 AUD
ZAR 9,365 ZAR
View
A
Retailer 11
-
$841 AUD
£465 GBP
View
A
Retailer 12
-
$845 AUD
€565 EUR
View
B+
Retailer 13
-
$1,113 AUD
View
B+
Retailer 14
-
$1,133 AUD
$796 USD
View
Retailer 15
-
$1,539 AUD
$1,081 USD
View
Price last confirmed 13 days ago
Retailer 16
-
$1,568 AUD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$1,611 AUD
$1,132 USD
View
B
Retailer 18
-
$1,623 AUD
$1,140 USD
View
B
Retailer 19
-
$1,842 AUD
$1,294 USD
View
B
Retailer 20
-
$1,918 AUD
£1,061 GBP
View
B
Retailer 21
-
$1,963 AUD
$1,379 USD
View
B
Retailer 22
-
$2,022 AUD
$1,421 USD
View
Most Expensive
B
Brilliant Earth
21658637A · Oct 30
$2,434 AUD
$1,710 USD
View
22 more retailers have this diamond
Prices start from $430 AUDSave up to $2,004 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
1.56ct Marquise
$430 AUD