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Heart|Lab Grown|IGI

1.00ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG835670073

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835670073

Diamond specifications and retailer prices

From $421 NZD
$237 USD
As of October 30, 2026
Save $2,081 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,502 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG835670073 or 835670073. Listed at 17 retailers as of October 30, 2026, with prices from $421 to $2,502, a $2,081 spread on the same certified stone. Brilliant Earth lists it at $2,502. 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

1.00
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835670073
Dimensions6.22 × 7.01 × 3.99 mm
L/W Ratio1.13
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
6.22 mm7.01 mm1.00 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835670073
Side View
Table 56.0%Crown 37.2°Girdle: MED-STKPavilion 37.7°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: Oct 30
Current: $2,502 NZD|Low: $421 NZD|High: $2,928 NZD|Avg: $1,156 NZD|-14.5%
Brilliant Earth
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
Retailer 17
November 1, 2026
Retailer 7$421 NZD
Retailer 16$470 NZD
Retailer 17$488 NZD
Retailer 12$522 NZD
Retailer 2$537 NZD
Retailer 15$736 NZD
Retailer 4$897 NZD
Retailer 5$981 NZD
Retailer 10$987 NZD
Retailer 13$1,065 NZD
Retailer 8$1,139 NZD
Retailer 6$1,273 NZD
Retailer 11$1,363 NZD
Retailer 14$1,678 NZD
Retailer 9$1,770 NZD
Retailer 3$2,329 NZD
Brilliant Earth$2,502 NZD

7 data points across 17 retailers

17 retailers$421 NZD to $2,502 NZD

A
Cheapest Retailer
-
$421 NZD
$237 USD
A
Retailer 2
-
$470 NZD
$265 USD
View
Final sale: no returns
A
Retailer 3
-
$488 NZD
$275 USD
View
A
Retailer 4
-
$522 NZD
$294 USD
View
A
Retailer 5
-
$537 NZD
£238 GBP
View
A
Retailer 6
-
$736 NZD
$415 USD
View
B+
Retailer 7
-
$897 NZD
ZAR 8,163 ZAR
View
B+
Retailer 8
-
$981 NZD
$553 USD
View
B+
Retailer 9
-
$987 NZD
£438 GBP
View
B+
Retailer 10
-
$1,065 NZD
$600 USD
View
B+
Retailer 11
-
$1,139 NZD
$642 USD
View
B+
Retailer 12
-
$1,273 NZD
A$1,104 AUD
View
B+
Retailer 13
-
$1,363 NZD
$768 USD
View
B
Retailer 14
-
$1,678 NZD
$946 USD
View
B
Retailer 15
-
$1,770 NZD
$998 USD
View
B
Retailer 16
-
$2,329 NZD
$1,312 USD
View
Most Expensive
B
Brilliant Earth
22318521A · Oct 31
$2,502 NZD
$1,410 USD
View
16 more retailers have this diamond
Prices start from $421 NZDSave up to $2,081 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
1.00ct Heart
$421 NZD