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Marquise|Lab Grown|IGI

1.28ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG814623834

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814623834

Diamond specifications and retailer prices

From $391 AUD
$274 USD
As of October 30, 2026
Save $1,532 AUD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,367 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG814623834 or 814623834. Listed at 12 retailers as of October 30, 2026, with a 392% 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
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814623834
Dimensions11.44 × 5.66 × 3.55 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.44 mm5.66 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814623834
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.7%

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: Oct 30
Current: $3,367 AUD|Low: $391 AUD|High: $3,367 AUD|Avg: $1,231 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 4$391 AUD
Retailer 12$548 AUD
Retailer 5$601 AUD
Retailer 9$732 AUD
Retailer 6$843 AUD
Retailer 10$906 AUD
Retailer 8$1,168 AUD
Retailer 7$1,403 AUD
Retailer 3$1,782 AUD
Retailer 11$1,909 AUD
Retailer 2$1,923 AUD
Do Amore Diamonds$3,367 AUD

6 data points across 12 retailers

12 retailers$391 AUD to $1,923 AUD

A
Cheapest Retailer
-
$391 AUD
$274 USD
Final sale: no returns
A
Retailer 2
-
$548 AUD
$384 USD
View
A
Retailer 3
-
$601 AUD
£332 GBP
View
A
Retailer 4
-
$732 AUD
$513 USD
View
B+
Retailer 5
-
$843 AUD
£465 GBP
View
B+
Retailer 6
-
$906 AUD
$635 USD
View
B+
Retailer 7
-
$1,168 AUD
View
B
Retailer 8
-
$1,403 AUD
$983 USD
View
B
Retailer 9
-
$1,782 AUD
$1,249 USD
View
B
Retailer 10
-
$1,909 AUD
$1,338 USD
View
B
Retailer 11
-
$1,923 AUD
£1,061 GBP
View
Most Expensive
Do Amore Diamonds
27-F427B5D28 · Oct 31
$3,367 AUD
$2,360 USD
View
Price under review
11 more retailers have this diamond
Prices start from $391 AUDSave up to $1,532 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
$391 AUD