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Heart|Lab Grown|IGI

1.23ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG728559284

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG728559284

Diamond specifications and retailer prices

From $355 NZD
As of November 4, 2026
Save $3,051 NZD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,406 NZD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728559284 or 728559284. Listed at 13 retailers as of November 4, 2026, with prices from $355 to $3,406, a $3,051 spread on the same certified stone. Do Amore Diamonds lists it at $3,406. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728559284
Dimensions7.51 × 6.91 × 4.16 mm
L/W Ratio1.09
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
7.51 mm6.91 mm1.23 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728559284
Side View
Table 63.0%Crown 35.3°Girdle: MED-STKPavilion 37°Culet: NoneDepth 55.4%

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 4
Current: $3,406 NZD|Low: $355 NZD|High: $3,814 NZD|Avg: $1,356 NZD|-10.7%
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
Retailer 16
November 5, 2026
Retailer 12$355 NZD
Retailer 15$397 NZD
Retailer 16$412 NZD
Retailer 4$532 NZD
Retailer 3$601 NZD
Retailer 11$797 NZD
Retailer 13$876 NZD
Retailer 7$958 NZD
Retailer 8$1,079 NZD
Retailer 9$1,189 NZD
Retailer 10$1,286 NZD
Retailer 14$1,563 NZD
Retailer 2$1,944 NZD
Retailer 6$2,297 NZD
Retailer 5$2,555 NZD
Do Amore Diamonds$3,406 NZD

29 data points across 16 retailers

13 retailers$355 NZD to $3,406 NZD

A
Cheapest Retailer
-
$355 NZD
A
Retailer 2
-
$397 NZD
View
Final sale: no returns
A
Retailer 3
-
$412 NZD
View
A
Retailer 4
-
$532 NZD
View
B+
Retailer 5
-
$601 NZD
View
A
Retailer 6
-
$797 NZD
View
B+
Retailer 7
-
$876 NZD
View
B+
Retailer 8
-
$1,189 NZD
View
B+
Retailer 9
-
$1,286 NZD
View
B+
Retailer 10
-
$1,563 NZD
View
B+
Retailer 11
-
$1,944 NZD
View
B
Retailer 12
-
$2,555 NZD
View
Most Expensive
B
Do Amore Diamonds
27-64E991385 · Nov 5
$3,406 NZD
$1,920 USD
View
12 more retailers have this diamond
Prices start from $355 NZDSave up to $3,051 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
1.23ct Heart
$355 NZD