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Heart|Lab Grown|IGI

1.73ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG630464029

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG630464029

Diamond specifications and retailer prices

From $483 NZD
$272 USD
As of November 2, 2026
Save $1,936 NZD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,420 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.73ct lab-grown heart diamond

This 1.73ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG630464029 or 630464029. Listed at 14 retailers as of October 29, 2026, with prices from $483 to $2,420, a $1,936 spread on the same certified stone. MOH London lists it at $2,420. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG630464029
Dimensions7.24 × 8.52 × 4.85 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
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
7.24 mm8.52 mm1.73 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG630464029
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 56.9%

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: Nov 2
Current: $2,420 NZD|Low: $371 NZD|High: $2,435 NZD|Avg: $1,173 NZD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$483 NZD
Retailer 8$542 NZD
Retailer 6$809 NZD
Retailer 4$880 NZD
Retailer 3$939 NZD
Retailer 2$1,056 NZD
Retailer 11$1,077 NZD
Retailer 9$1,081 NZD
Retailer 5$1,475 NZD
Retailer 10$2,021 NZD
MOH London$2,420 NZD

39 data points across 11 retailers

14 retailers$483 NZD to $2,420 NZD

A
Cheapest Retailer
-
$483 NZD
$272 USD
A
Retailer 2
-
$542 NZD
$305 USD
View
Final sale: no returns
A
Retailer 3
-
$562 NZD
$316 USD
View
A
Retailer 4
-
$601 NZD
$338 USD
View
Retailer 5
-
$601 NZD
$338 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$809 NZD
$455 USD
View
A
Retailer 7
-
$880 NZD
$495 USD
View
B+
Retailer 8
-
$1,056 NZD
£468 GBP
View
B+
Retailer 9
-
$1,077 NZD
$606 USD
View
B+
Retailer 10
-
$1,081 NZD
$608 USD
View
B+
Retailer 11
-
$1,475 NZD
$830 USD
View
B
Retailer 12
-
$1,930 NZD
$1,086 USD
View
B
Retailer 13
-
$2,021 NZD
$1,137 USD
View
Most Expensive
B
MOH London
LG630464029 · Oct 29
$2,420 NZD
£1,072 GBP
View
13 more retailers have this diamond
Prices start from $483 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
1.73ct Heart
$483 NZD