Marquise|Lab Grown|IGI

1.59ct H IF Marquise Lab Grown Diamond

ID • H/IF • IGI LG635428718

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG635428718

Diamond specifications and retailer prices

From €419 EUR
$467 USD
As of October 27, 2026
Save €1,620 EUR (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €2,039 EUR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct lab-grown marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG635428718 or 635428718. Listed at 24 retailers as of October 27, 2026, with prices from €419 to €2,039, a €1,620 spread on the same certified stone. Brilliant Earth lists it at €2,039. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
H
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635428718
Dimensions12.04 × 6.17 × 3.74 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
12.04 mm6.17 mm1.59 ctH / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635428718
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.6%

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: Oct 27
Current: €2,039 EUR|Low: €419 EUR|High: €2,941 EUR|Avg: €1,280 EUR|-0.9%
Brilliant Earth
Retailer 2
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Retailer 23
October 29, 2026
Retailer 4€419 EUR
Retailer 9€469 EUR
Retailer 12€470 EUR
Retailer 7€521 EUR
Retailer 10€521 EUR
Retailer 13€568 EUR
Retailer 20€575 EUR
Retailer 3€646 EUR
Retailer 2€647 EUR
Retailer 16€728 EUR
Retailer 6€735 EUR
Retailer 17€895 EUR
Retailer 18€908 EUR
Retailer 22€1,221 EUR
Retailer 21€1,399 EUR
Retailer 19€1,518 EUR
Retailer 15€1,519 EUR
Retailer 11€1,650 EUR
Retailer 5€1,673 EUR
Retailer 14€1,701 EUR
Retailer 8€1,839 EUR
Retailer 23€1,922 EUR
Brilliant Earth€2,039 EUR

34 data points across 23 retailers

24 retailers€419 EUR to €2,039 EUR

A
Cheapest Retailer
-
€419 EUR
$467 USD
A
Retailer 2
-
€469 EUR
$522 USD
View
Final sale: no returns
A
Retailer 3
-
€470 EUR
$523 USD
View
A
Retailer 4
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€521 EUR
$580 USD
View
Price last confirmed 13 days ago
A
Retailer 5
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€521 EUR
$580 USD
View
Price last confirmed 7 days ago
A
Retailer 6
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€568 EUR
£498 GBP
View
A
Retailer 7
-
€575 EUR
HK$5,000 HKD
View
B+
Retailer 8
-
€646 EUR
$719 USD
View
A
Retailer 9
-
€647 EUR
$720 USD
View
A
Retailer 10
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€728 EUR
$810 USD
View
B+
Retailer 11
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€735 EUR
$818 USD
View
B+
Retailer 12
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€895 EUR
ZAR 16,091 ZAR
View
B+
Retailer 13
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€908 EUR
View
B+
Retailer 14
-
€1,221 EUR
A$2,092 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
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€1,399 EUR
$1,558 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
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€1,500 EUR
$1,670 USD
View
B+
Retailer 17
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€1,518 EUR
$1,690 USD
View
B+
Retailer 18
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€1,519 EUR
£1,332 GBP
View
Price last confirmed 7 days ago
B+
Retailer 19
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€1,650 EUR
SGD 2,483 SGD
View
B+
Retailer 20
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€1,673 EUR
$1,863 USD
View
B+
Retailer 21
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€1,701 EUR
$1,893 USD
View
B+
Retailer 22
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€1,839 EUR
$2,047 USD
View
B+
Retailer 23
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€1,922 EUR
£1,685 GBP
View
Most Expensive
B+
Brilliant Earth
10270002A · Oct 28
€2,039 EUR
$2,270 USD
View
23 more retailers have this diamond
Prices start from €419 EURSave up to €1,620 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
1.59ct Marquise
€419 EUR