Heart|Lab Grown|IGI

1.00ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG842625301

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG842625301

Diamond specifications and retailer prices

From $280 USD
£221 GBP
As of October 30, 2026
Save $1,112 USD (80%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,392 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842625301 or 842625301. Listed at 5 retailers as of October 29, 2026, with prices from $280 to $1,392, a $1,112 spread on the same certified stone. MOH London lists it at $1,392. 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

1.00
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842625301
Dimensions7.05 × 6.28 × 3.87 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
7.05 mm6.28 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842625301
Side View
Table 60.0%Crown 34.4°Girdle: THK-VTKPavilion 37.7°Culet: NoneDepth 54.9%

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: Oct 30
Current: $1,392 USD|Low: $271 USD|High: $1,392 USD|Avg: $482 USD|+45.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 2$280 USD
Retailer 4$310 USD
Retailer 5$313 USD
Retailer 3$315 USD
MOH London$1,392 USD

17 data points across 5 retailers

5 retailers$280 USD to $1,392 USD

A
Cheapest Retailer
-
$280 USD
£221 GBP
B+
Retailer 2
-
$310 USD
View
B+
Retailer 3
-
$313 USD
View
B+
Retailer 4
-
$315 USD
£248 GBP
View
Most Expensive
C
MOH London
LG842625301 · Oct 29
$1,392 USD
£1,096 GBP
View
4 more retailers have this diamond
Prices start from $280 USDSave up to $1,112 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
$280 USD