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Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG788617266

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG788617266

Diamond specifications and retailer prices

From £697 GBP
A$1,428 AUD
As of October 29, 2026
5 retailers carry this diamond
Most expensive: £1,831 GBP at Novita Diamonds · As of July 4, 2026
View at Novita Diamonds

About this 1.55ct lab-grown marquise diamond

This 1.55ct 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 LG788617266 or 788617266. Listed at 5 retailers as of October 29, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788617266
Dimensions12.12 × 6.06 × 12.12 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.12 mm6.06 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788617266
Side View
Table 58.0%Crown 36.7°Girdle: MediumPavilion 37.8°Culet: NoneDepth 60.4%

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 29
Current: £697 GBP|Low: £267 GBP|High: £2,380 GBP|Avg: £1,058 GBP
Retailer 1
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October 21, 2026
Retailer 2£267 GBP
Retailer 14£397 GBP
Retailer 7£500 GBP
Retailer 11£635 GBP
Retailer 19£665 GBP
Retailer 9£686 GBP
Retailer 13£695 GBP
Retailer 1£697 GBP
Retailer 12£745 GBP
Retailer 17£773 GBP
Retailer 6£849 GBP
Retailer 4£1,061 GBP
Retailer 3£1,500 GBP
Retailer 8£1,602 GBP
Retailer 5£1,705 GBP
Retailer 16£1,741 GBP
Retailer 10£1,841 GBP
Retailer 15£1,922 GBP
Retailer 18£2,380 GBP

12 data points across 19 retailers

5 retailers

Retailer 1
-
£500 GBP
HK$5,200 HKD
Price last confirmed 55 days ago
A
Retailer 2
-
£697 GBP
A$1,428 AUD
View
Retailer 3
-
£773 GBP
ZAR 16,631 ZAR
View
Price last confirmed 41 days ago
Retailer 4
-
£1,705 GBP
$2,270 USD
View
Price last confirmed 50 days ago
Most Expensive
Novita Diamonds
cert_788617266 · Jul 4
£1,831 GBP
A$3,751 AUD
View
Price last confirmed 118 days ago
4 more retailers have this diamond
Prices start from £697 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
1.55ct Marquise
£697 GBP