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Heart|Lab Grown|IGI

1.23ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG510193469

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG510193469

Diamond specifications and retailer prices

From $398 NZD
As of November 4, 2026
Save $3,426 NZD (90%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $3,825 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG510193469 or 510193469. Listed at 29 retailers as of November 4, 2026, with prices from $398 to $3,825, a $3,426 spread on the same certified stone. Do Amore Diamonds lists it at $3,825. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG510193469
Dimensions7.52 × 6.41 × 4.34 mm
L/W Ratio1.17
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
7.52 mm6.41 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG510193469
Side View
Table 61.5%Crown 37.8°Girdle: MED-STKPavilion 39°Culet: NoneDepth 57.7%

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: $447 NZD|Low: $398 NZD|High: $2,213 NZD|Avg: $1,143 NZD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 13$398 NZD
Retailer 1$447 NZD
Retailer 3$774 NZD
Retailer 4$925 NZD
Retailer 9$943 NZD
Retailer 6$1,026 NZD
Retailer 11$1,119 NZD
Retailer 5$1,203 NZD
Retailer 10$1,316 NZD
Retailer 7$1,338 NZD
Retailer 2$1,539 NZD
Retailer 12$1,596 NZD
Retailer 8$2,188 NZD

44 data points across 13 retailers

29 retailers$398 NZD to $3,825 NZD

A
Cheapest Retailer
-
$398 NZD
Retailer 2
-
$398 NZD
View
Price last confirmed 36 days ago
Retailer 3
-
$398 NZD
View
Price last confirmed 28 days ago
Retailer 4
-
$398 NZD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$447 NZD
View
Final sale: no returns
Retailer 6
-
$463 NZD
View
Price last confirmed 37 days ago
Retailer 7
-
$489 NZD
View
Price last confirmed 39 days ago
Retailer 8
-
$495 NZD
View
Price last confirmed 33 days ago
Retailer 9
-
$495 NZD
View
Price last confirmed 26 days ago
A
Retailer 10
-
$671 NZD
View
A
Retailer 11
-
$774 NZD
View
A
Retailer 12
-
$774 NZD
View
B+
Retailer 13
-
$925 NZD
View
B+
Retailer 14
-
$943 NZD
View
B+
Retailer 15
-
$1,026 NZD
View
B+
Retailer 16
-
$1,119 NZD
View
B+
Retailer 17
-
$1,203 NZD
View
B+
Retailer 18
-
$1,316 NZD
View
B+
Retailer 19
-
$1,338 NZD
View
Retailer 20
-
$1,539 NZD
View
Price last confirmed 28 days ago
B
Retailer 21
-
$1,596 NZD
View
Retailer 22
-
$1,756 NZD
View
Price last confirmed 26 days ago
B
Retailer 23
-
$1,756 NZD
View
Retailer 24
-
$1,756 NZD
View
Price last confirmed 36 days ago
B
Retailer 25
-
$2,058 NZD
View
B
Retailer 26
-
$2,188 NZD
View
B
Retailer 27
-
$2,213 NZD
View
B
Retailer 28
-
$2,259 NZD
View
Most Expensive
B
Do Amore Diamonds
27-26DD9B55D · Nov 4
$3,825 NZD
$2,150 USD
View
28 more retailers have this diamond
Prices start from $398 NZDSave up to $3,426 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
$398 NZD