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Marquise|Lab Grown|IGI

1.59ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG743593569

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG743593569

Diamond specifications and retailer prices

From £700 GBP
$932 USD
As of October 23, 2026
Save £1,643 GBP (70%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £3,875 GBP at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743593569 or 743593569. Listed at 28 retailers as of October 23, 2026, with a 235% 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

1.59
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593569
Dimensions5.99 × 5.99 × 3.68 mm
L/W Ratio1.00
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
5.99 mm5.99 mm1.59 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593569
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: £3,875 GBP|Low: £436 GBP|High: £3,875 GBP|Avg: £1,337 GBP
Do Amore Diamonds
Retailer 2
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October 29, 2026
Retailer 7£436 GBP
Retailer 12£488 GBP
Retailer 14£534 GBP
Retailer 18£548 GBP
Retailer 23£638 GBP
Retailer 19£700 GBP
Retailer 17£703 GBP
Retailer 13£740 GBP
Retailer 9£843 GBP
Retailer 21£885 GBP
Retailer 26£910 GBP
Retailer 25£1,005 GBP
Retailer 24£1,016 GBP
Retailer 4£1,342 GBP
Retailer 22£1,389 GBP
Retailer 15£1,418 GBP
Retailer 11£1,570 GBP
Retailer 27£1,701 GBP
Retailer 10£1,740 GBP
Retailer 6£1,741 GBP
Retailer 5£1,796 GBP
Retailer 8£1,944 GBP
Retailer 20£2,014 GBP
Retailer 16£2,136 GBP
Retailer 2£2,343 GBP
Retailer 3£2,365 GBP
Do Amore Diamonds£3,875 GBP

30 data points across 27 retailers

28 retailers£700 GBP to £2,343 GBP

Retailer 1
-
£436 GBP
$581 USD
Price last confirmed 22 days ago
Retailer 2
-
£534 GBP
$711 USD
View
Price last confirmed 31 days ago
Retailer 3
-
£541 GBP
$720 USD
View
Price last confirmed 27 days ago
Retailer 4
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£541 GBP
$720 USD
View
Price last confirmed 19 days ago
Retailer 5
-
£638 GBP
$850 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£700 GBP
$932 USD
View
Retailer 7
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£703 GBP
$936 USD
View
Price last confirmed 8 days ago
A
Retailer 8
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£740 GBP
HK$7,700 HKD
View
Retailer 9
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£843 GBP
$1,122 USD
View
Price last confirmed 9 days ago
Retailer 10
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£885 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
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£1,005 GBP
A$2,058 AUD
View
Retailer 12
-
£1,016 GBP
ZAR 21,867 ZAR
View
Price last confirmed 11 days ago
Retailer 13
-
£1,342 GBP
$1,787 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£1,389 GBP
A$2,846 AUD
View
Price last confirmed 8 days ago
Retailer 15
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£1,418 GBP
$1,889 USD
View
Price last confirmed 8 days ago
Retailer 16
-
£1,570 GBP
$2,091 USD
View
Price last confirmed 19 days ago
Retailer 17
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£1,570 GBP
$2,091 USD
View
Price last confirmed 8 days ago
Retailer 18
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£1,570 GBP
$2,091 USD
View
Price last confirmed 29 days ago
Retailer 19
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£1,701 GBP
$2,265 USD
View
Price last confirmed 12 days ago
Retailer 20
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£1,741 GBP
$2,318 USD
View
Price last confirmed 8 days ago
Retailer 21
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£1,796 GBP
$2,391 USD
View
Price last confirmed 9 days ago
Retailer 22
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£1,944 GBP
A$3,982 AUD
View
Price last confirmed 22 days ago
Retailer 23
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£2,014 GBP
$2,682 USD
View
Price last confirmed 8 days ago
Retailer 24
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£2,136 GBP
SGD 3,843 SGD
View
Price last confirmed 9 days ago
B
Retailer 25
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£2,343 GBP
$3,120 USD
View
B
Retailer 26
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£2,343 GBP
$3,120 USD
View
Retailer 27
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£2,365 GBP
View
Price last confirmed 9 days ago
Most Expensive
Do Amore Diamonds
27-16A18D1A3 · Oct 23
£3,875 GBP
$5,160 USD
View
Price last confirmed 7 days ago
27 more retailers have this diamond
Prices start from £700 GBPSave up to £1,643 GBP

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
£700 GBP