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Marquise|Lab Grown|IGI

1.81ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG641494144

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG641494144

Diamond specifications and retailer prices

From £429 GBP
$571 USD
As of October 27, 2026
Save £3,378 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,807 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.81ct lab-grown marquise diamond

This 1.81ct 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 LG641494144 or 641494144. Listed at 23 retailers as of October 27, 2026, with prices from £429 to £3,807, a £3,378 spread on the same certified stone. Do Amore Diamonds lists it at £3,807. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641494144
Dimensions12.58 × 6.34 × 3.97 mm
L/W Ratio1.98
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
12.58 mm6.34 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641494144
Side View
Table 57.0%Crown 34.7°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.6%

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: £3,807 GBP|Low: £429 GBP|High: £5,009 GBP|Avg: £1,672 GBP|-24.0%
Do Amore Diamonds
Retailer 2
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Retailer 22
October 30, 2026
Retailer 6£429 GBP
Retailer 8£479 GBP
Retailer 21£481 GBP
Retailer 18£532 GBP
Retailer 16£631 GBP
Retailer 7£692 GBP
Retailer 5£701 GBP
Retailer 17£819 GBP
Retailer 22£876 GBP
Retailer 2£920 GBP
Retailer 13£1,009 GBP
Retailer 11£1,319 GBP
Retailer 19£1,544 GBP
Retailer 4£1,705 GBP
Retailer 9£1,711 GBP
Retailer 10£1,773 GBP
Retailer 14£1,796 GBP
Retailer 3£1,983 GBP
Retailer 12£2,004 GBP
Retailer 15£2,133 GBP
Retailer 20£2,316 GBP
Do Amore Diamonds£3,807 GBP

38 data points across 22 retailers

23 retailers£429 GBP to £3,807 GBP

A
Cheapest Retailer
-
£429 GBP
$571 USD
A
Retailer 2
-
£479 GBP
$638 USD
View
Final sale: no returns
A
Retailer 3
-
£481 GBP
$640 USD
View
A
Retailer 4
-
£532 GBP
$708 USD
View
A
Retailer 5
-
£631 GBP
$840 USD
View
Retailer 6
-
£654 GBP
$871 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
£692 GBP
HK$7,200 HKD
View
A
Retailer 8
-
£701 GBP
$934 USD
View
A
Retailer 9
-
£819 GBP
$1,091 USD
View
A
Retailer 10
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£876 GBP
$1,166 USD
View
A
Retailer 11
-
£920 GBP
View
A
Retailer 12
-
£1,009 GBP
ZAR 21,699 ZAR
View
A
Retailer 13
-
£1,319 GBP
$1,757 USD
View
B+
Retailer 14
-
£1,544 GBP
$2,056 USD
View
B+
Retailer 15
-
£1,705 GBP
View
B+
Retailer 16
-
£1,711 GBP
$2,279 USD
View
B+
Retailer 17
-
£1,773 GBP
$2,361 USD
View
Retailer 18
-
£1,796 GBP
A$3,679 AUD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
£1,983 GBP
$2,640 USD
View
B+
Retailer 20
-
£2,004 GBP
SGD 3,607 SGD
View
B+
Retailer 21
-
£2,133 GBP
$2,840 USD
View
B+
Retailer 22
-
£2,316 GBP
View
Most Expensive
B
Do Amore Diamonds
27-F4AD76964 · Oct 29
£3,807 GBP
$5,070 USD
View
22 more retailers have this diamond
Prices start from £429 GBPSave up to £3,378 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
1.81ct Marquise
£429 GBP