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Marquise|Lab Grown|IGI

1.59ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG800679631

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800679631

Diamond specifications and retailer prices

From £898 GBP
HK$9,400 HKD
As of October 30, 2026
Save £1,893 GBP (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,791 GBP at Brilliant Earth · As of October 30, 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800679631 or 800679631. Listed at 12 retailers as of October 30, 2026, with prices from £898 to £2,791, a £1,893 spread on the same certified stone. Brilliant Earth lists it at £2,791. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679631
Dimensions12.14 × 6.06 × 3.84 mm
L/W Ratio2.00
Girdle conditionFaceted
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
12.14 mm6.06 mm1.59 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679631
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.4%

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: Oct 30
Current: £2,791 GBP|Low: £621 GBP|High: £3,147 GBP|Avg: £1,816 GBP|-10.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 5£621 GBP
Retailer 9£898 GBP
Retailer 12£970 GBP
Retailer 13£1,105 GBP
Retailer 2£1,125 GBP
Retailer 6£1,176 GBP
Retailer 7£1,345 GBP
Retailer 11£1,880 GBP
Retailer 10£2,290 GBP
Retailer 4£2,537 GBP
Retailer 8£2,747 GBP
Retailer 3£2,776 GBP
Brilliant Earth£2,791 GBP

43 data points across 13 retailers

12 retailers£898 GBP to £2,791 GBP

A
Cheapest Retailer
-
£898 GBP
HK$9,400 HKD
A
Retailer 2
-
£970 GBP
$1,300 USD
View
A
Retailer 3
-
£1,105 GBP
$1,480 USD
View
A
Retailer 4
-
£1,125 GBP
View
A
Retailer 5
-
£1,176 GBP
€1,501 EUR
View
B+
Retailer 6
-
£1,345 GBP
ZAR 29,118 ZAR
View
Retailer 7
-
£1,880 GBP
$2,519 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£2,290 GBP
$3,068 USD
View
B
Retailer 9
-
£2,537 GBP
$3,399 USD
View
B
Retailer 10
-
£2,747 GBP
View
B
Retailer 11
-
£2,776 GBP
$3,719 USD
View
Most Expensive
B
Brilliant Earth
20936672A · Oct 30
£2,791 GBP
$3,740 USD
View
11 more retailers have this diamond
Prices start from £898 GBPSave up to £1,893 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
£898 GBP