CaratHunter
Plans
Heart|Lab Grown|IGI

1.02ct E SI1 Heart Lab Grown Diamond

VG • E/SI1 • IGI LG850679578

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG850679578

Diamond specifications and retailer prices

From $523 NZD
As of November 6, 2026
Save $929 NZD (64%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,452 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.02ct lab-grown heart diamond

This 1.02ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG850679578 or 850679578. Listed at 5 retailers as of November 2, 2026, with prices from $523 to $1,452, a $929 spread on the same certified stone. MOH London lists it at $1,452. 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

1.02
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850679578
Dimensions6.18 × 6.95 × 4.13 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.18 mm6.95 mm1.02 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850679578
Side View
Table 58.0%Crown 34.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.4%

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 6
Current: $1,452 NZD|Low: $523 NZD|High: $1,452 NZD|Avg: $660 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$523 NZD
Retailer 5$527 NZD
Retailer 3$581 NZD
Retailer 4$590 NZD
MOH London$1,452 NZD

8 data points across 5 retailers

5 retailers$523 NZD to $1,452 NZD

A
Cheapest Retailer
-
$523 NZD
B+
Retailer 2
-
$527 NZD
View
B+
Retailer 3
-
$581 NZD
View
B+
Retailer 4
-
$590 NZD
View
Most Expensive
B
MOH London
LG850679578 · Nov 2
$1,452 NZD
£634 GBP
View
4 more retailers have this diamond
Prices start from $523 NZDSave up to $929 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
1.02ct Heart
$523 NZD