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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 $610 USD
As of October 31, 2026
Save $3,208 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,818 USD at MOH London · As of October 29, 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 October 29, 2026, with prices from $610 to $3,818, a $3,208 spread on the same certified stone. MOH London lists it at $3,818. 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
Color
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 →
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 31
Current: $3,818 USD|Low: $610 USD|High: $3,843 USD|Avg: $1,652 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$610 USD
Retailer 4$873 USD
Retailer 8$950 USD
Retailer 9$977 USD
Retailer 5$1,013 USD
Retailer 10$1,535 USD
Retailer 6$1,628 USD
Retailer 3$2,329 USD
Retailer 7$2,848 USD
MOH London$3,818 USD

17 data points across 10 retailers

10 retailers$610 USD to $3,818 USD

A
Cheapest Retailer
-
$610 USD
B+
Retailer 2
-
$873 USD
View
B+
Retailer 3
-
$950 USD
View
B+
Retailer 4
-
$977 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,013 USD
View
Retailer 6
-
$1,013 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$1,628 USD
View
B
Retailer 8
-
$2,329 USD
View
C
Retailer 9
-
$2,848 USD
View
Most Expensive
C
MOH London
LG407945556 · Oct 29
$3,818 USD
£3,006 GBP
View
9 more retailers have this diamond
Prices start from $610 USDSave up to $3,208 USD

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
$610 USD