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Heart|Lab Grown|IGI

1.00ct I SI2 Heart Lab Grown Diamond

VG • I/SI2 • IGI LG407945556

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG407945556

Diamond specifications and retailer prices

From $1,100 NZD
As of November 6, 2026
Save $5,731 NZD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,832 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407945556 or 407945556. Listed at 10 retailers as of November 5, 2026, with prices from $1,100 to $6,832, a $5,731 spread on the same certified stone. MOH London lists it at $6,832. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle36.3°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407945556
Dimensions5.76 × 7.03 × 4.08 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
5.76 mm7.03 mm1.00 ctI / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI LG407945556
Side View
Table 62.5%Crown 36.3°Girdle: MED-ETKPavilion 43.4°Culet: NoneDepth 58.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,832 NZD|Low: $1,100 NZD|High: $6,932 NZD|Avg: $3,005 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2$1,100 NZD
Retailer 4$1,575 NZD
Retailer 8$1,714 NZD
Retailer 9$1,762 NZD
Retailer 5$1,827 NZD
Retailer 10$2,769 NZD
Retailer 6$2,937 NZD
Retailer 3$4,201 NZD
Retailer 7$5,138 NZD
MOH London$6,832 NZD

17 data points across 10 retailers

10 retailers$1,100 NZD to $6,832 NZD

B+
Cheapest Retailer
-
$1,100 NZD
B+
Retailer 2
-
$1,575 NZD
View
B+
Retailer 3
-
$1,714 NZD
View
B+
Retailer 4
-
$1,762 NZD
View
Final sale: no returns
B+
Retailer 5
-
$1,827 NZD
View
Retailer 6
-
$1,827 NZD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,937 NZD
View
B
Retailer 8
-
$4,201 NZD
View
C
Retailer 9
-
$5,138 NZD
View
Most Expensive
C
MOH London
LG407945556 · Nov 5
$6,832 NZD
£2,982 GBP
View
9 more retailers have this diamond
Prices start from $1,100 NZDSave up to $5,731 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.

B+
1.00ct Heart
$1,100 NZD