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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 $474 AUD
HK$2,600 HKD
As of October 28, 2026
Save $1,548 AUD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,021 AUD at Brilliant Earth · As of October 28, 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 28, 2026, with prices from $474 to $2,021, a $1,548 spread on the same certified stone. Brilliant Earth lists it at $2,021. 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 28
Current: $2,021 AUD|Low: $569 AUD|High: $2,078 AUD|Avg: $1,153 AUD|-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$674 AUD
Retailer 6$710 AUD
Retailer 2$794 AUD
Retailer 8$801 AUD
Retailer 9$986 AUD
Retailer 7$1,063 AUD
Retailer 10$1,365 AUD
Retailer 4$1,687 AUD
Retailer 3$1,694 AUD
Brilliant Earth$2,021 AUD

37 data points across 10 retailers

11 retailers$474 AUD to $2,021 AUD

A
Cheapest Retailer
-
$474 AUD
HK$2,600 HKD
A
Retailer 2
-
$674 AUD
€451 EUR
View
B+
Retailer 3
-
$710 AUD
$499 USD
View
A
Retailer 4
-
$794 AUD
£439 GBP
View
A
Retailer 5
-
$801 AUD
$563 USD
View
B+
Retailer 6
-
$986 AUD
$693 USD
View
B+
Retailer 7
-
$1,063 AUD
$747 USD
View
B
Retailer 8
-
$1,365 AUD
SGD 1,296 SGD
View
B
Retailer 9
-
$1,687 AUD
$1,185 USD
View
B
Retailer 10
-
$1,694 AUD
£937 GBP
View
Most Expensive
B
Brilliant Earth
20213402A · Oct 28
$2,021 AUD
$1,420 USD
View
10 more retailers have this diamond
Prices start from $474 AUDSave up to $1,548 AUD

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
$474 AUD