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Radiant|Lab Grown|IGI

1.73ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG468168401

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG468168401

Diamond specifications and retailer prices

From $331 NZD
$186 USD
As of October 27, 2026
Save $2,856 NZD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,187 NZD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant 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 LG468168401 or 468168401. Listed at 12 retailers as of October 27, 2026, with prices from $331 to $3,187, a $2,856 spread on the same certified stone. Do Amore Diamonds lists it at $3,187. 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 angle45.9°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG468168401
Dimensions7.57 × 6.08 × 4.17 mm
L/W Ratio1.25
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.57 mm6.08 mm1.73 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG468168401
Side View
Table 67.5%Crown 45.9°Girdle: Slightly ThickPavilion 31.9°Culet: NoneDepth 68.6%

Caratlytics Score

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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: $3,187 NZD|Low: $326 NZD|High: $3,347 NZD|Avg: $1,336 NZD|-4.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 12$331 NZD
Retailer 3$381 NZD
Retailer 11$385 NZD
Retailer 2$585 NZD
Retailer 10$723 NZD
Retailer 4$887 NZD
Retailer 7$1,126 NZD
Retailer 5$1,275 NZD
Retailer 9$1,326 NZD
Retailer 14$1,441 NZD
Retailer 13$1,460 NZD
Retailer 6$2,076 NZD
Retailer 8$2,126 NZD
Retailer 15$2,475 NZD
Do Amore Diamonds$3,187 NZD

37 data points across 15 retailers

12 retailers$331 NZD to $3,187 NZD

A
Cheapest Retailer
-
$331 NZD
$186 USD
A
Retailer 2
-
$381 NZD
$214 USD
View
Final sale: no returns
A
Retailer 3
-
$385 NZD
$216 USD
View
A
Retailer 4
-
$585 NZD
£258 GBP
View
B+
Retailer 5
-
$723 NZD
$406 USD
View
B
Retailer 6
-
$1,326 NZD
$745 USD
View
B+
Retailer 7
-
$1,441 NZD
$809 USD
View
B+
Retailer 8
-
$1,460 NZD
$820 USD
View
B
Retailer 9
-
$1,579 NZD
£698 GBP
View
B
Retailer 10
-
$2,126 NZD
£940 GBP
View
B
Retailer 11
-
$2,475 NZD
$1,390 USD
View
Most Expensive
B
Do Amore Diamonds
27-E5EA7792C · Oct 28
$3,187 NZD
$1,790 USD
View
11 more retailers have this diamond
Prices start from $331 NZDSave up to $2,856 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 Radiant
$331 NZD