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1.73ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG652478204

Shape and cutting style on the report: Round brilliant

Certificate IGI LG652478204

Diamond specifications and retailer prices

From $782 NZD
$439 USD
As of October 28, 2026
Save $1,349 NZD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,131 NZD at MOH London · As of October 29, 2026
View at MOH London

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 LG652478204 or 652478204. Listed at 15 retailers as of October 28, 2026, with prices from $782 to $2,131, a $1,349 spread on the same certified stone. MOH London lists it at $2,131. 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 angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG652478204
Dimensions7.71 × 7.66 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.71 mm7.66 mm1.73 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG652478204
Side View
Table 58.0%Crown 34.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.9%

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 28
Current: $2,131 NZD|Low: $454 NZD|High: $2,147 NZD|Avg: $1,171 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8$454 NZD
Retailer 9$782 NZD
Retailer 7$787 NZD
Retailer 4$808 NZD
Retailer 2$833 NZD
Retailer 3$946 NZD
Retailer 11$1,058 NZD
Retailer 5$1,464 NZD
Retailer 6$1,488 NZD
Retailer 10$1,977 NZD
MOH London$2,131 NZD

37 data points across 11 retailers

15 retailers$782 NZD to $2,131 NZD

A
Retailer 1
-
$365 NZD
$205 USD
Price last confirmed 33 days ago
A
Retailer 2
-
$424 NZD
$238 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$447 NZD
$251 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
$454 NZD
$255 USD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$782 NZD
$439 USD
View
A
Retailer 6
-
$787 NZD
£348 GBP
View
Price last confirmed 12 days ago
A
Retailer 7
-
$808 NZD
€432 EUR
View
A
Retailer 8
-
$833 NZD
£368 GBP
View
A
Retailer 9
-
$946 NZD
$531 USD
View
B+
Retailer 10
-
$1,058 NZD
$594 USD
View
B+
Retailer 11
-
$1,459 NZD
$819 USD
View
Price last confirmed 31 days ago
B
Retailer 12
-
$1,464 NZD
$822 USD
View
B+
Retailer 13
-
$1,488 NZD
$835 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,977 NZD
$1,110 USD
View
Most Expensive
B
MOH London
LG652478204 · Oct 29
$2,131 NZD
£942 GBP
View
14 more retailers have this diamond
Prices start from $782 NZDSave up to $1,349 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
$782 NZD