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Marquise|Lab Grown|IGI

1.80ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG816672824

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816672824

Diamond specifications and retailer prices

From £407 GBP
$545 USD
As of October 30, 2026
Save £3,205 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,612 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.8ct lab-grown marquise diamond

This 1.8ct 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 LG816672824 or 816672824. Listed at 22 retailers as of October 29, 2026, with prices from £407 to £3,612, a £3,205 spread on the same certified stone. Do Amore Diamonds lists it at £3,612. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816672824
Dimensions13.09 × 6.38 × 3.91 mm
L/W Ratio2.05
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
13.09 mm6.38 mm1.80 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816672824
Side View
Table 63.0%Crown 33.9°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.3%

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 30
Current: £3,612 GBP|Low: £407 GBP|High: £3,612 GBP|Avg: £1,393 GBP
Do Amore Diamonds
Retailer 2
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October 30, 2026
Retailer 4£407 GBP
Retailer 7£455 GBP
Retailer 22£456 GBP
Retailer 5£505 GBP
Retailer 17£577 GBP
Retailer 18£605 GBP
Retailer 10£731 GBP
Retailer 14£779 GBP
Retailer 11£858 GBP
Retailer 2£872 GBP
Retailer 16£957 GBP
Retailer 21£1,231 GBP
Retailer 19£1,305 GBP
Retailer 6£1,465 GBP
Retailer 3£1,624 GBP
Retailer 9£1,626 GBP
Retailer 12£1,888 GBP
Retailer 8£1,910 GBP
Retailer 20£2,108 GBP
Retailer 13£2,431 GBP
Retailer 15£2,449 GBP
Do Amore Diamonds£3,612 GBP

33 data points across 22 retailers

22 retailers£407 GBP to £3,612 GBP

A
Cheapest Retailer
-
£407 GBP
$545 USD
A
Retailer 2
-
£455 GBP
$610 USD
View
Final sale: no returns
A
Retailer 3
-
£456 GBP
$611 USD
View
A
Retailer 4
-
£505 GBP
$676 USD
View
A
Retailer 5
-
£577 GBP
View
A
Retailer 6
-
£605 GBP
$810 USD
View
A
Retailer 7
-
£731 GBP
$979 USD
View
A
Retailer 8
-
£779 GBP
$1,044 USD
View
A
Retailer 9
-
£858 GBP
$1,149 USD
View
A
Retailer 10
-
£872 GBP
View
A
Retailer 11
-
£957 GBP
ZAR 20,720 ZAR
View
A
Retailer 12
-
£1,231 GBP
$1,650 USD
View
Retailer 13
-
£1,305 GBP
A$2,690 AUD
View
Price last confirmed 9 days ago
A
Retailer 14
-
£1,465 GBP
$1,963 USD
View
B+
Retailer 15
-
£1,624 GBP
$2,176 USD
View
B+
Retailer 16
-
£1,626 GBP
View
B+
Retailer 17
-
£1,888 GBP
$2,530 USD
View
B+
Retailer 18
-
£1,910 GBP
SGD 3,458 SGD
View
B+
Retailer 19
-
£2,108 GBP
$2,825 USD
View
B+
Retailer 20
-
£2,431 GBP
View
Retailer 21
-
£2,449 GBP
A$5,049 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Do Amore Diamonds
27-E0EB2547A · Oct 29
£3,612 GBP
$4,840 USD
View
21 more retailers have this diamond
Prices start from £407 GBPSave up to £3,205 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
1.80ct Marquise
£407 GBP