CaratHunter
Plans
Marquise|Lab Grown|IGI

1.07ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG780673487

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780673487

Diamond specifications and retailer prices

From £498 GBP
$670 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: £498 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.07ct lab-grown marquise diamond

This 1.07ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG780673487 or 780673487. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.07
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780673487
Dimensions10.36 × 5.39 × 3.40 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.36 mm5.39 mm1.07 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780673487
Side View
Table 60.0%Crown 36.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £498 GBP|Low: £146 GBP|High: £758 GBP|Avg: £362 GBP|-34.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
May 6, 2026
Retailer 7£240 GBP
Retailer 5£242 GBP
Retailer 2£277 GBP
Retailer 6£331 GBP
Retailer 3£376 GBP
Retailer 8£413 GBP
Brilliant Earth£498 GBP
Retailer 4£525 GBP

28 data points across 8 retailers

1 retailer

B
Brilliant Earth
18141636A · Nov 4
£498 GBP
$670 USD
View

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.

B
1.07ct Marquise
£498 GBP