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Marquise|Lab Grown|IGI

1.45ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG751511112

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG751511112

Diamond specifications and retailer prices

From $294 USD
As of November 2, 2026
Save $1,318 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,610 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.45ct lab-grown marquise diamond

This 1.45ct 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 LG751511112 or 751511112. Listed at 17 retailers as of November 1, 2026, with a 448% 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

1.45
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751511112
Dimensions12.20 × 5.89 × 3.59 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.20 mm5.89 mm1.45 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751511112
Side View
Table 60.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.0%

Caratlytics Score

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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 2
Current: $2,610 USD|Low: $282 USD|High: $2,610 USD|Avg: $1,005 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
November 2, 2026
Retailer 16$294 USD
Retailer 6$329 USD
Retailer 4$341 USD
Retailer 5$364 USD
Retailer 17$364 USD
Retailer 8$515 USD
Retailer 13$520 USD
Retailer 3$597 USD
Retailer 2$719 USD
Retailer 12$976 USD
Retailer 14$1,025 USD
Retailer 15$1,119 USD
Retailer 18$1,293 USD
Retailer 7$1,454 USD
Retailer 9$1,489 USD
Retailer 11$1,612 USD
Retailer 10$2,080 USD
Do Amore Diamonds$2,610 USD

43 data points across 18 retailers

17 retailers$294 USD to $1,612 USD

A
Cheapest Retailer
-
$294 USD
A
Retailer 2
-
$329 USD
View
Final sale: no returns
A
Retailer 3
-
$341 USD
View
A
Retailer 4
-
$364 USD
View
Retailer 5
-
$364 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$515 USD
View
A
Retailer 7
-
$520 USD
View
B+
Retailer 8
-
$597 USD
View
B+
Retailer 9
-
$719 USD
£566 GBP
View
B+
Retailer 10
-
$976 USD
A$1,502 AUD
View
B
Retailer 11
-
$1,025 USD
View
B
Retailer 12
-
$1,119 USD
View
B
Retailer 13
-
$1,293 USD
View
B
Retailer 14
-
$1,454 USD
View
B
Retailer 15
-
$1,489 USD
View
B
Retailer 16
-
$1,612 USD
£1,269 GBP
View
Most Expensive
Do Amore Diamonds
27-E815C5346 · Nov 2
$2,610 USD
View
Price under review
16 more retailers have this diamond
Prices start from $294 USDSave up to $1,318 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
1.45ct Marquise
$294 USD