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Marquise|Lab Grown|IGI

1.98ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG844625610

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844625610

Diamond specifications and retailer prices

From £198 GBP
$266 USD
As of November 1, 2026
Save £949 GBP (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,148 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.98ct lab-grown marquise diamond

This 1.98ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG844625610 or 844625610. Listed at 3 retailers as of November 1, 2026, with prices from £198 to £1,148, a £949 spread on the same certified stone. Brilliant Earth lists it at £1,148. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.98
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844625610
Dimensions12.17 × 6.48 × 4.21 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.17 mm6.48 mm1.98 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844625610
Side View
Table 62.0%Crown 39.2°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 65.0%

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: Nov 1
Current: £1,148 GBP|Low: £198 GBP|High: £1,148 GBP|Avg: £483 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£198 GBP
Retailer 2£431 GBP
Brilliant Earth£1,148 GBP

11 data points across 3 retailers

3 retailers£198 GBP to £1,148 GBP

A
Cheapest Retailer
-
£198 GBP
$266 USD
Final sale: no returns
B+
Retailer 2
-
£431 GBP
View
Most Expensive
B
Brilliant Earth
21829638A · Nov 2
£1,148 GBP
$1,540 USD
View
2 more retailers have this diamond
Prices start from £198 GBPSave up to £949 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
1.98ct Marquise
£198 GBP