Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG814623841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814623841

Diamond specifications and retailer prices

From $293 USD
As of November 1, 2026
Save $1,154 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,330 USD at Do Amore Diamonds · As of November 2, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG814623841 or 814623841. Listed at 13 retailers as of October 29, 2026, with a 394% 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814623841
Dimensions11.49 × 5.60 × 3.56 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.49 mm5.60 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814623841
Side View
Table 60.0%Crown 33.6°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 63.6%

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: Nov 1
Current: $2,330 USD|Low: $293 USD|High: $2,330 USD|Avg: $886 USD
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
Retailer 13
November 2, 2026
Retailer 5$293 USD
Retailer 3$412 USD
Retailer 2$480 USD
Retailer 11$542 USD
Retailer 7$545 USD
Retailer 6$630 USD
Retailer 12$745 USD
Retailer 10$876 USD
Retailer 8$999 USD
Retailer 4$1,320 USD
Retailer 13$1,390 USD
Retailer 9$1,447 USD
Do Amore Diamonds$2,330 USD

7 data points across 13 retailers

13 retailers$293 USD to $1,447 USD

A
Cheapest Retailer
-
$293 USD
Final sale: no returns
A
Retailer 2
-
$412 USD
View
A
Retailer 3
-
$480 USD
£378 GBP
View
B+
Retailer 4
-
$542 USD
View
B+
Retailer 5
-
$545 USD
View
B+
Retailer 6
-
$630 USD
£496 GBP
View
B+
Retailer 7
-
$745 USD
View
B
Retailer 8
-
$876 USD
A$1,347 AUD
View
B
Retailer 9
-
$999 USD
View
B
Retailer 10
-
$1,320 USD
View
B
Retailer 11
-
$1,390 USD
View
B
Retailer 12
-
$1,447 USD
£1,139 GBP
View
Most Expensive
Do Amore Diamonds
27-E3E7073B1 · Nov 2
$2,330 USD
View
Price under review
12 more retailers have this diamond
Prices start from $293 USDSave up to $1,154 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
$293 USD