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Princess|Lab Grown|IGI

1.89ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG847661523

Shape and cutting style on the report: Princess cut

Certificate IGI LG847661523

Diamond specifications and retailer prices

From £205 GBP
$273 USD
As of October 27, 2026
Save £1,582 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,787 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.89ct lab-grown princess diamond

This 1.89ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847661523 or 847661523. Listed at 12 retailers as of October 27, 2026, with prices from £205 to £1,787, a £1,582 spread on the same certified stone. Brilliant Earth lists it at £1,787. 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

1.89
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847661523
Dimensions6.65 × 6.64 × 4.87 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.65 mm6.64 mm1.89 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847661523
Side View
Table 73.0%Crown 47.9°Girdle: MediumPavilion 38.6°Culet: NoneDepth 73.3%

Caratlytics Score

How it works →
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: £1,787 GBP|Low: £205 GBP|High: £1,787 GBP|Avg: £612 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7£205 GBP
Retailer 5£229 GBP
Retailer 10£288 GBP
Retailer 6£327 GBP
Retailer 9£372 GBP
Retailer 2£404 GBP
Retailer 3£422 GBP
Retailer 8£445 GBP
Retailer 12£463 GBP
Retailer 4£821 GBP
Retailer 11£1,021 GBP
Brilliant Earth£1,787 GBP

3 data points across 12 retailers

12 retailers£205 GBP to £1,787 GBP

A
Cheapest Retailer
-
£205 GBP
$273 USD
A
Retailer 2
-
£229 GBP
$305 USD
View
Final sale: no returns
A
Retailer 3
-
£288 GBP
HK$3,000 HKD
View
A
Retailer 4
-
£327 GBP
View
A
Retailer 5
-
£372 GBP
$495 USD
View
A
Retailer 6
-
£404 GBP
€512 EUR
View
B+
Retailer 7
-
£422 GBP
$562 USD
View
A
Retailer 8
-
£445 GBP
View
B+
Retailer 9
-
£463 GBP
$616 USD
View
B
Retailer 10
-
£821 GBP
SGD 1,477 SGD
View
B
Retailer 11
-
£1,021 GBP
View
Most Expensive
B
Brilliant Earth
22307800A · Oct 29
£1,787 GBP
$2,380 USD
View
11 more retailers have this diamond
Prices start from £205 GBPSave up to £1,582 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
1.89ct Princess
£205 GBP