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1.73ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG632499250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG632499250

Diamond specifications and retailer prices

From $365 NZD
$205 USD
As of October 29, 2026
Save $3,554 NZD (91%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,919 NZD at Jared · As of October 28, 2026
View at Jared

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round 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 LG632499250 or 632499250. Listed at 11 retailers as of October 28, 2026, with prices from $365 to $3,919, a $3,554 spread on the same certified stone. Jared lists it at $3,919. 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

1.73
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632499250
Dimensions7.70 × 7.75 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.70 mm7.75 mm1.73 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632499250
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

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 29
Current: $868 NZD|Low: $306 NZD|High: $3,634 NZD|Avg: $1,395 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 12$365 NZD
Retailer 13$413 NZD
Retailer 11$424 NZD
Retailer 10$782 NZD
Retailer 1$868 NZD
Retailer 4$974 NZD
Retailer 5$1,080 NZD
Retailer 3$1,126 NZD
Retailer 7$1,463 NZD
Retailer 8$1,609 NZD
Retailer 6$2,007 NZD
Retailer 2$2,601 NZD
Retailer 9$3,510 NZD

35 data points across 13 retailers

11 retailers$365 NZD to $3,919 NZD

A
Cheapest Retailer
-
$365 NZD
$205 USD
A
Retailer 2
-
$413 NZD
$232 USD
View
Final sale: no returns
A
Retailer 3
-
$424 NZD
$238 USD
View
B+
Retailer 4
-
$782 NZD
$439 USD
View
A
Retailer 5
-
$868 NZD
£384 GBP
View
B+
Retailer 6
-
$1,463 NZD
$821 USD
View
B+
Retailer 7
-
$1,609 NZD
$903 USD
View
B
Retailer 8
-
$2,007 NZD
£887 GBP
View
B
Retailer 9
-
$2,601 NZD
$1,460 USD
View
B
Retailer 10
-
$3,510 NZD
$1,970 USD
View
Most Expensive
B
Jared
151375966 · Oct 28
$3,919 NZD
$2,200 USD
View
10 more retailers have this diamond
Prices start from $365 NZDSave up to $3,554 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
1.73ct Round
$365 NZD