Marquise|Lab Grown|IGI

1.28ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG814624171

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814624171

Diamond specifications and retailer prices

From $274 USD
As of October 30, 2026
Save $1,064 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,360 USD at Do Amore Diamonds · As of October 29, 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 LG814624171 or 814624171. Listed at 11 retailers as of October 30, 2026, with a 388% 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814624171
Dimensions11.20 × 5.60 × 3.61 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.20 mm5.60 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814624171
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
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: Oct 30
Current: $2,360 USD|Low: $274 USD|High: $2,360 USD|Avg: $780 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3$274 USD
Retailer 10$384 USD
Retailer 4$422 USD
Retailer 7$513 USD
Retailer 5$591 USD
Retailer 8$635 USD
Retailer 6$818 USD
Retailer 2$983 USD
Retailer 11$1,249 USD
Retailer 9$1,338 USD
Do Amore Diamonds$2,360 USD

7 data points across 11 retailers

11 retailers$274 USD to $1,338 USD

A
Cheapest Retailer
-
$274 USD
Final sale: no returns
A
Retailer 2
-
$384 USD
View
A
Retailer 3
-
$422 USD
£333 GBP
View
A
Retailer 4
-
$513 USD
View
B+
Retailer 5
-
$591 USD
£465 GBP
View
B+
Retailer 6
-
$635 USD
View
B+
Retailer 7
-
$818 USD
A$1,259 AUD
View
B
Retailer 8
-
$983 USD
View
B
Retailer 9
-
$1,249 USD
View
B
Retailer 10
-
$1,338 USD
View
Most Expensive
Do Amore Diamonds
27-CA15950CF · Oct 29
$2,360 USD
View
Price under review
10 more retailers have this diamond
Prices start from $274 USDSave up to $1,064 USD

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
$274 USD