Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG836611815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836611815

Diamond specifications and retailer prices

From $754 AUD
As of November 1, 2026
Save $438 AUD (37%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,773 AUD at Reve Diamonds · As of October 25, 2026
View at Reve 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836611815 or 836611815. Listed at 20 retailers as of October 29, 2026, with a 58% 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836611815
Dimensions11.16 × 5.71 × 3.48 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.16 mm5.71 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836611815
Side View
Table 63.0%Crown 34.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,192 AUD|Low: $295 AUD|High: $1,773 AUD|Avg: $888 AUD
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
Retailer 14
Retailer 15
Retailer 16
Reve Diamonds
October 29, 2026
Retailer 3$308 AUD
Retailer 8$344 AUD
Retailer 5$382 AUD
Retailer 11$509 AUD
Retailer 6$513 AUD
Retailer 15$644 AUD
Retailer 12$666 AUD
Retailer 10$683 AUD
Retailer 9$754 AUD
Retailer 14$928 AUD
Retailer 16$989 AUD
Retailer 2$1,069 AUD
Retailer 1$1,192 AUD
Retailer 7$1,234 AUD
Retailer 4$1,525 AUD
Retailer 13$1,530 AUD
Reve Diamonds$1,773 AUD

36 data points across 17 retailers

20 retailers$754 AUD to $1,192 AUD

Retailer 1
-
$308 AUD
Price last confirmed 12 days ago
Retailer 2
-
$356 AUD
View
Price last confirmed 11 days ago
Retailer 3
-
$382 AUD
View
Price last confirmed 10 days ago
Retailer 4
-
$382 AUD
View
Price last confirmed 10 days ago
Retailer 5
-
$509 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$513 AUD
View
Price last confirmed 10 days ago
Retailer 7
-
$644 AUD
View
Price last confirmed 12 days ago
Retailer 8
-
$666 AUD
View
Price last confirmed 8 days ago
Retailer 9
-
$683 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$754 AUD
View
Retailer 11
-
$928 AUD
View
Price last confirmed 11 days ago
Retailer 12
-
$989 AUD
View
Price last confirmed 9 days ago
Retailer 13
-
$1,069 AUD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$1,192 AUD
View
Retailer 15
-
$1,226 AUD
View
Price last confirmed 10 days ago
Retailer 16
-
$1,234 AUD
View
Price last confirmed 8 days ago
Retailer 17
-
$1,300 AUD
View
Price last confirmed 9 days ago
Retailer 18
-
$1,525 AUD
View
Price last confirmed 9 days ago
Retailer 19
-
$1,530 AUD
View
Price last confirmed 9 days ago
Most Expensive
Reve Diamonds
8A500A192 · Oct 25
$1,773 AUD
$1,244 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from $754 AUDSave up to $438 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+
1.28ct Marquise
$754 AUD