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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG731580885

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG731580885

Diamond specifications and retailer prices

From €438 EUR
$491 USD
As of November 1, 2026
Save €1,457 EUR (77%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €1,895 EUR at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731580885 or 731580885. Listed at 29 retailers as of November 1, 2026, with prices from €438 to €1,895, a €1,457 spread on the same certified stone. With Clarity lists it at €1,895. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731580885
Dimensions10.81 × 5.53 × 3.51 mm
L/W Ratio1.95
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
10.81 mm5.53 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731580885
Side View
Table 61.0%Crown 37.6°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 63.5%

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: Nov 1
Current: €838 EUR|Low: €241 EUR|High: €1,895 EUR|Avg: €1,057 EUR|-2.8%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
With Clarity
November 2, 2026
Retailer 13€241 EUR
Retailer 20€438 EUR
Retailer 11€486 EUR
Retailer 19€548 EUR
Retailer 3€559 EUR
Retailer 8€687 EUR
Retailer 4€687 EUR
Retailer 7€734 EUR
Retailer 18€779 EUR
Retailer 12€796 EUR
Retailer 1€838 EUR
Retailer 6€1,130 EUR
Retailer 17€1,183 EUR
Retailer 2€1,305 EUR
Retailer 21€1,360 EUR
Retailer 14€1,504 EUR
Retailer 16€1,587 EUR
Retailer 5€1,591 EUR
Retailer 10€1,623 EUR
Retailer 9€1,745 EUR
Retailer 15€1,785 EUR
With Clarity€1,895 EUR

32 data points across 22 retailers

29 retailers€438 EUR to €1,895 EUR

Retailer 1
-
€241 EUR
$270 USD
Price last confirmed 25 days ago
Retailer 2
-
€407 EUR
$456 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
€438 EUR
$491 USD
View
Final sale: no returns
Retailer 4
-
€456 EUR
$511 USD
View
Price last confirmed 34 days ago
Retailer 5
-
€486 EUR
$545 USD
View
Price last confirmed 25 days ago
Retailer 6
-
€486 EUR
$545 USD
View
Price last confirmed 23 days ago
Retailer 7
-
€498 EUR
$559 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
€548 EUR
$615 USD
View
A
Retailer 9
-
€559 EUR
HK$4,900 HKD
View
A
Retailer 10
-
€687 EUR
$770 USD
View
A
Retailer 11
-
€687 EUR
$771 USD
View
B+
Retailer 12
-
€734 EUR
$823 USD
View
B+
Retailer 13
-
€779 EUR
View
B+
Retailer 14
-
€796 EUR
£703 GBP
View
B+
Retailer 15
-
€838 EUR
ZAR 15,176 ZAR
View
Retailer 16
-
€1,130 EUR
$1,267 USD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
€1,183 EUR
A$2,042 AUD
View
B
Retailer 18
-
€1,305 EUR
$1,464 USD
View
B+
Retailer 19
-
€1,360 EUR
$1,525 USD
View
Retailer 20
-
€1,504 EUR
A$2,596 AUD
View
Price last confirmed 25 days ago
B
Retailer 21
-
€1,561 EUR
$1,751 USD
View
Retailer 22
-
€1,561 EUR
$1,751 USD
View
Price last confirmed 23 days ago
B
Retailer 23
-
€1,587 EUR
$1,780 USD
View
B
Retailer 24
-
€1,591 EUR
$1,784 USD
View
Retailer 25
-
€1,622 EUR
$1,819 USD
View
Price last confirmed 33 days ago
B
Retailer 26
-
€1,623 EUR
SGD 2,460 SGD
View
B
Retailer 27
-
€1,745 EUR
$1,957 USD
View
B
Retailer 28
-
€1,785 EUR
£1,576 GBP
View
Most Expensive
B
With Clarity
731580885 · Nov 2
€1,895 EUR
$2,125 USD
View
28 more retailers have this diamond
Prices start from €438 EURSave up to €1,457 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
1.20ct Marquise
€438 EUR