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Marquise|Lab Grown|IGI

1.50ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG567351261

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG567351261

Diamond specifications and retailer prices

From €277 EUR
$309 USD
As of November 1, 2026
Save €897 EUR (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,324 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct lab-grown marquise diamond

This 1.5ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG567351261 or 567351261. Listed at 22 retailers as of November 1, 2026, with a 324% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567351261
Dimensions11.75 × 5.92 × 3.80 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.75 mm5.92 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567351261
Side View
Table 59.0%Crown 35.9°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €1,173 EUR|Low: €236 EUR|High: €1,628 EUR|Avg: €681 EUR|-27.8%
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
November 1, 2026
Retailer 5€236 EUR
Retailer 13€277 EUR
Retailer 3€293 EUR
Retailer 15€344 EUR
Retailer 14€414 EUR
Retailer 10€416 EUR
Retailer 4€456 EUR
Retailer 9€487 EUR
Retailer 12€527 EUR
Retailer 8€560 EUR
Retailer 6€650 EUR
Retailer 11€899 EUR
Retailer 7€989 EUR
Retailer 2€1,173 EUR
Retailer 1€1,173 EUR

43 data points across 15 retailers

22 retailers€277 EUR to €1,173 EUR

Retailer 1
-
€236 EUR
$264 USD
Price last confirmed 24 days ago
A
Retailer 2
-
€277 EUR
$309 USD
View
Final sale: no returns
Retailer 3
-
€293 EUR
$327 USD
View
Price last confirmed 24 days ago
Retailer 4
-
€293 EUR
$327 USD
View
Price last confirmed 22 days ago
Retailer 5
-
€332 EUR
$371 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
€344 EUR
HK$3,000 HKD
View
Retailer 7
-
€385 EUR
$430 USD
View
Price last confirmed 34 days ago
Retailer 8
-
€406 EUR
$454 USD
View
Price last confirmed 34 days ago
A
Retailer 9
-
€414 EUR
$462 USD
View
A
Retailer 10
-
€416 EUR
$465 USD
View
A
Retailer 11
-
€456 EUR
$509 USD
View
A
Retailer 12
-
€487 EUR
View
B+
Retailer 13
-
€527 EUR
$589 USD
View
B+
Retailer 14
-
€560 EUR
£493 GBP
View
Retailer 15
-
€650 EUR
$726 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
€899 EUR
$1,004 USD
View
B
Retailer 17
-
€941 EUR
$1,051 USD
View
Retailer 18
-
€941 EUR
$1,051 USD
View
Price last confirmed 22 days ago
B
Retailer 19
-
€989 EUR
SGD 1,493 SGD
View
B
Retailer 20
-
€1,173 EUR
$1,310 USD
View
B
Retailer 21
-
€1,173 EUR
£1,032 GBP
View
Most Expensive
NZ Jewellers
e7d27fde-2fca-499b-8653-22fec6f03616 · Sep 30
€1,324 EUR
$1,479 USD
View
Price last confirmed 32 days ago
21 more retailers have this diamond
Prices start from €277 EURSave up to €897 EUR

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
1.50ct Marquise
€277 EUR