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Marquise|Lab Grown|IGI

1.28ct D VVS1 Marquise Lab Grown Diamond

ID • D/VVS1 • IGI LG837672605

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837672605

Diamond specifications and retailer prices

From $318 AUD
As of November 4, 2026
Save $1,788 AUD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,549 AUD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg Diamonds

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG837672605 or 837672605. Listed at 22 retailers as of November 4, 2026, with a 562% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837672605
Dimensions11.44 × 5.55 × 3.50 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
11.44 mm5.55 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837672605
Side View
Table 60.0%Crown 37.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A+
Exceptional
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 4
Current: $449 AUD|Low: $318 AUD|High: $2,121 AUD|Avg: $934 AUD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 4, 2026
Retailer 15$318 AUD
Retailer 12$356 AUD
Retailer 18$369 AUD
Retailer 3$395 AUD
Retailer 11$399 AUD
Retailer 1$449 AUD
Retailer 17$530 AUD
Retailer 13$643 AUD
Retailer 6$683 AUD
Retailer 19$727 AUD
Retailer 8$851 AUD
Retailer 10$922 AUD
Retailer 5$968 AUD
Retailer 16$1,269 AUD
Retailer 21$1,273 AUD
Retailer 2$1,343 AUD
Retailer 20$1,360 AUD
Retailer 14$1,568 AUD
Retailer 7$1,587 AUD
Retailer 9$1,599 AUD
Retailer 4$2,105 AUD

20 data points across 21 retailers

22 retailers$318 AUD to $2,105 AUD

A+
Cheapest Retailer
-
$318 AUD
A
Retailer 2
-
$356 AUD
View
Final sale: no returns
A
Retailer 3
-
$369 AUD
View
A
Retailer 4
-
$395 AUD
View
Retailer 5
-
$399 AUD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$449 AUD
View
B+
Retailer 7
-
$530 AUD
View
Retailer 8
-
$643 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$683 AUD
View
A
Retailer 10
-
$727 AUD
View
A
Retailer 11
-
$851 AUD
View
A
Retailer 12
-
$922 AUD
View
B+
Retailer 13
-
$968 AUD
View
B+
Retailer 14
-
$1,269 AUD
View
B+
Retailer 15
-
$1,273 AUD
View
B+
Retailer 16
-
$1,343 AUD
View
B+
Retailer 17
-
$1,360 AUD
View
B
Retailer 18
-
$1,568 AUD
View
Price last confirmed 7 days ago
B+
Retailer 19
-
$1,587 AUD
View
B
Retailer 20
-
$1,599 AUD
View
B
Retailer 21
-
$2,105 AUD
View
Most Expensive
Helzberg Diamonds
ZXZOJNMNIMGL · Oct 13
$2,549 AUD
$1,788 USD
View
Price last confirmed 22 days ago
21 more retailers have this diamond
Prices start from $318 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+
1.28ct Marquise
$318 AUD