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1.73ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG528234086

Shape and cutting style on the report: Round brilliant

Certificate IGI LG528234086

Diamond specifications and retailer prices

From $600 NZD
$338 USD
As of November 1, 2026
Save $4,723 NZD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,323 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG528234086 or 528234086. Listed at 18 retailers as of November 1, 2026, with prices from $600 to $5,323, a $4,723 spread on the same certified stone. Do Amore Diamonds lists it at $5,323. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528234086
Dimensions7.67 × 7.72 × 4.80 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.67 mm7.72 mm1.73 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528234086
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.3%

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: Nov 1
Current: $5,323 NZD|Low: $600 NZD|High: $5,323 NZD|Avg: $1,817 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 17$600 NZD
Retailer 15$696 NZD
Retailer 4$743 NZD
Retailer 14$743 NZD
Retailer 13$784 NZD
Retailer 18$903 NZD
Retailer 12$1,011 NZD
Retailer 16$1,345 NZD
Retailer 11$1,387 NZD
Retailer 9$1,391 NZD
Retailer 10$1,537 NZD
Retailer 2$1,686 NZD
Retailer 5$2,179 NZD
Retailer 8$2,431 NZD
Retailer 3$2,637 NZD
Retailer 6$2,913 NZD
Retailer 7$3,220 NZD
Do Amore Diamonds$5,323 NZD

14 data points across 18 retailers

18 retailers$600 NZD to $5,323 NZD

A
Cheapest Retailer
-
$600 NZD
$338 USD
A
Retailer 2
-
$696 NZD
$392 USD
View
Retailer 3
-
$743 NZD
$419 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$743 NZD
$419 USD
View
B+
Retailer 5
-
$784 NZD
$442 USD
View
A
Retailer 6
-
$903 NZD
$509 USD
View
A
Retailer 7
-
$1,011 NZD
$570 USD
View
A
Retailer 8
-
$1,345 NZD
$758 USD
View
A
Retailer 9
-
$1,387 NZD
£616 GBP
View
A
Retailer 10
-
$1,391 NZD
$784 USD
View
A
Retailer 11
-
$1,537 NZD
$866 USD
View
A
Retailer 12
-
$1,686 NZD
$950 USD
View
A
Retailer 13
-
$2,179 NZD
$1,228 USD
View
A
Retailer 14
-
$2,431 NZD
$1,370 USD
View
A
Retailer 15
-
$2,637 NZD
$1,486 USD
View
B+
Retailer 16
-
$2,913 NZD
$1,642 USD
View
B+
Retailer 17
-
$3,220 NZD
£1,429 GBP
View
Most Expensive
B
Do Amore Diamonds
27-D15A711C1 · Nov 2
$5,323 NZD
$3,000 USD
View
17 more retailers have this diamond
Prices start from $600 NZDSave up to $4,723 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
$600 NZD