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Heart|Lab Grown|IGI

1.03ct I SI1 Heart Lab Grown Diamond

ID • I/SI1 • IGI LG414063294

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG414063294

Diamond specifications and retailer prices

From $620 USD
As of November 6, 2026
Save $3,393 USD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,013 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG414063294 or 414063294. Listed at 11 retailers as of November 5, 2026, with prices from $620 to $4,013, a $3,393 spread on the same certified stone. MOH London lists it at $4,013. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.7°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG414063294
Dimensions7.30 × 5.99 × 4.13 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
7.30 mm5.99 mm1.03 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG414063294
Side View
Table 53.0%Crown 33.7°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 56.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,013 USD|Low: $620 USD|High: $4,078 USD|Avg: $1,956 USD|-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$620 USD
Retailer 3$1,023 USD
Retailer 6$1,145 USD
Retailer 4$1,187 USD
Retailer 7$1,360 USD
Retailer 9$1,702 USD
Retailer 5$1,893 USD
Retailer 8$2,480 USD
Retailer 10$3,397 USD
MOH London$4,013 USD

13 data points across 10 retailers

11 retailers$620 USD to $4,013 USD

A
Cheapest Retailer
-
$620 USD
A
Retailer 2
-
$1,023 USD
View
B+
Retailer 3
-
$1,113 USD
View
B+
Retailer 4
-
$1,145 USD
View
Final sale: no returns
Retailer 5
-
$1,187 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,187 USD
View
B+
Retailer 7
-
$1,360 USD
View
B
Retailer 8
-
$1,893 USD
View
B
Retailer 9
-
$2,224 USD
View
B
Retailer 10
-
$2,480 USD
View
Most Expensive
B
MOH London
LG414063294 · Nov 5
$4,013 USD
£3,160 GBP
View
10 more retailers have this diamond
Prices start from $620 USDSave up to $3,393 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
1.03ct Heart
$620 USD