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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 $593 NZD
HK$2,600 HKD
As of October 28, 2026
Save $1,936 NZD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,528 NZD 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 $593 to $2,528, a $1,936 spread on the same certified stone. Brilliant Earth lists it at $2,528. 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: $2,528 NZD|Low: $712 NZD|High: $2,600 NZD|Avg: $1,442 NZD|-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$843 NZD
Retailer 6$888 NZD
Retailer 2$994 NZD
Retailer 8$1,002 NZD
Retailer 9$1,234 NZD
Retailer 7$1,330 NZD
Retailer 10$1,708 NZD
Retailer 4$2,110 NZD
Retailer 3$2,119 NZD
Brilliant Earth$2,528 NZD

37 data points across 10 retailers

11 retailers$593 NZD to $2,528 NZD

A
Cheapest Retailer
-
$593 NZD
HK$2,600 HKD
A
Retailer 2
-
$843 NZD
€451 EUR
View
B+
Retailer 3
-
$888 NZD
$499 USD
View
A
Retailer 4
-
$994 NZD
£439 GBP
View
A
Retailer 5
-
$1,002 NZD
$563 USD
View
B+
Retailer 6
-
$1,234 NZD
$693 USD
View
B+
Retailer 7
-
$1,330 NZD
$747 USD
View
B
Retailer 8
-
$1,708 NZD
SGD 1,296 SGD
View
B
Retailer 9
-
$2,110 NZD
$1,185 USD
View
B
Retailer 10
-
$2,119 NZD
£937 GBP
View
Most Expensive
B
Brilliant Earth
20213402A · Oct 28
$2,528 NZD
$1,420 USD
View
10 more retailers have this diamond
Prices start from $593 NZDSave up to $1,936 NZD

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
$593 NZD