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Heart|Lab Grown|IGI

1.23ct D VVS1 Heart Lab Grown Diamond

VG • D/VVS1 • IGI LG799619921

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799619921

Diamond specifications and retailer prices

From $355 NZD
As of November 4, 2026
Save $3,282 NZD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,637 NZD at Do Amore Diamonds · As of November 4, 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 very-good cut grade and certified by IGI LG799619921 or 799619921. Listed at 15 retailers as of November 4, 2026, with prices from $355 to $3,637, a $3,282 spread on the same certified stone. Do Amore Diamonds lists it at $3,637. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799619921
Dimensions6.75 × 7.51 × 4.12 mm
L/W Ratio1.11
Girdle conditionFaceted
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
6.75 mm7.51 mm1.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799619921
Side View
Table 59.0%Crown 37.1°Girdle: STK-THKPavilion 36.6°Culet: NoneDepth 54.9%

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 4
Current: $3,637 NZD|Low: $355 NZD|High: $3,637 NZD|Avg: $1,134 NZD|+5.7%
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 20
November 5, 2026
Retailer 14$355 NZD
Retailer 16$397 NZD
Retailer 19$412 NZD
Retailer 9$468 NZD
Retailer 10$474 NZD
Retailer 13$553 NZD
Retailer 4$580 NZD
Retailer 18$601 NZD
Retailer 11$832 NZD
Retailer 7$855 NZD
Retailer 3$901 NZD
Retailer 6$1,068 NZD
Retailer 20$1,270 NZD
Retailer 17$1,286 NZD
Retailer 15$1,563 NZD
Retailer 12$1,598 NZD
Retailer 8$1,618 NZD
Retailer 2$1,944 NZD
Retailer 5$2,555 NZD
Do Amore Diamonds$3,637 NZD

23 data points across 20 retailers

15 retailers$355 NZD to $3,637 NZD

A
Cheapest Retailer
-
$355 NZD
A
Retailer 2
-
$397 NZD
View
Final sale: no returns
A
Retailer 3
-
$412 NZD
View
Retailer 4
-
$468 NZD
View
Price last confirmed 39 days ago
A
Retailer 5
-
$553 NZD
View
A
Retailer 6
-
$580 NZD
View
B+
Retailer 7
-
$601 NZD
View
Retailer 8
-
$832 NZD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
$901 NZD
View
B
Retailer 10
-
$1,270 NZD
View
B+
Retailer 11
-
$1,286 NZD
View
B
Retailer 12
-
$1,563 NZD
View
B
Retailer 13
-
$1,944 NZD
View
Retailer 14
-
$2,555 NZD
View
Price last confirmed 13 days ago
Most Expensive
B
Do Amore Diamonds
27-A51561416 · Nov 4
$3,637 NZD
$2,050 USD
View
14 more retailers have this diamond
Prices start from $355 NZDSave up to $3,282 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