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Heart|Lab Grown|IGI

1.28ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681475

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681475

Diamond specifications and retailer prices

From $562 NZD
As of November 4, 2026
Save $4,423 NZD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,985 NZD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681475 or 818681475. Listed at 11 retailers as of November 4, 2026, with prices from $562 to $4,985, a $4,423 spread on the same certified stone. Do Amore Diamonds lists it at $4,985. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681475
Dimensions6.51 × 7.59 × 4.46 mm
L/W Ratio1.17
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
6.51 mm7.59 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681475
Side View
Table 58.0%Crown 32.2°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 58.8%

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: $4,985 NZD|Low: $562 NZD|High: $7,327 NZD|Avg: $2,592 NZD|-32.0%
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
November 3, 2026
Retailer 6$562 NZD
Retailer 10$653 NZD
Retailer 11$1,029 NZD
Retailer 8$1,130 NZD
Retailer 3$1,235 NZD
Retailer 12$1,726 NZD
Retailer 7$2,044 NZD
Retailer 9$2,473 NZD
Retailer 2$3,005 NZD
Retailer 5$4,666 NZD
Retailer 4$4,680 NZD
Do Amore Diamonds$4,985 NZD

23 data points across 12 retailers

11 retailers$562 NZD to $4,985 NZD

A
Cheapest Retailer
-
$562 NZD
A
Retailer 2
-
$653 NZD
View
A
Retailer 3
-
$1,029 NZD
View
A
Retailer 4
-
$1,130 NZD
View
A
Retailer 5
-
$1,235 NZD
View
B+
Retailer 6
-
$1,726 NZD
View
B+
Retailer 7
-
$2,044 NZD
View
B+
Retailer 8
-
$2,473 NZD
View
B+
Retailer 9
-
$3,005 NZD
View
B
Retailer 10
-
$4,666 NZD
View
Most Expensive
B
Do Amore Diamonds
27-396AFF3E3 · Nov 4
$4,985 NZD
$2,810 USD
View
10 more retailers have this diamond
Prices start from $562 NZDSave up to $4,423 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
1.28ct Heart
$562 NZD