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Oval|Lab Grown|IGI

1.89ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG810636682

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG810636682

Diamond specifications and retailer prices

From £248 GBP
HK$2,600 HKD
As of October 30, 2026
Save £811 GBP (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,060 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.89ct lab-grown oval diamond

This 1.89ct lab-grown oval 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 LG810636682 or 810636682. Listed at 11 retailers as of October 29, 2026, with prices from £248 to £1,060, a £811 spread on the same certified stone. Brilliant Earth lists it at £1,060. 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 angle33.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810636682
Dimensions9.90 × 7.09 × 4.27 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.90 mm7.09 mm1.89 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810636682
Side View
Table 64.0%Crown 33.8°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,060 GBP|Low: £299 GBP|High: £1,090 GBP|Avg: £605 GBP|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 5£353 GBP
Retailer 6£372 GBP
Retailer 2£416 GBP
Retailer 8£420 GBP
Retailer 9£517 GBP
Retailer 7£558 GBP
Retailer 10£716 GBP
Retailer 4£884 GBP
Retailer 3£888 GBP
Brilliant Earth£1,060 GBP

37 data points across 10 retailers

11 retailers£248 GBP to £1,060 GBP

A
Cheapest Retailer
-
£248 GBP
HK$2,600 HKD
A
Retailer 2
-
£353 GBP
€451 EUR
View
B+
Retailer 3
-
£372 GBP
$499 USD
View
A
Retailer 4
-
£416 GBP
View
A
Retailer 5
-
£420 GBP
$563 USD
View
B+
Retailer 6
-
£517 GBP
$693 USD
View
B+
Retailer 7
-
£558 GBP
$747 USD
View
B
Retailer 8
-
£716 GBP
SGD 1,296 SGD
View
B
Retailer 9
-
£884 GBP
$1,185 USD
View
B
Retailer 10
-
£888 GBP
View
Most Expensive
B
Brilliant Earth
20213402A · Oct 29
£1,060 GBP
$1,420 USD
View
10 more retailers have this diamond
Prices start from £248 GBPSave up to £811 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 Oval
£248 GBP