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Heart|Lab Grown|IGI

1.28ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG643421154

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG643421154

Diamond specifications and retailer prices

From $300 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $300 USD at Clean Origin
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Clean Origin

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG643421154 or 643421154. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643421154
Dimensions7.37 × 6.51 × 4.43 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.37 mm6.51 mm1.28 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643421154
Side View
Table 52.0%Crown 31.2°Girdle: ThickPavilion 39.3°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $300 USD|Low: $300 USD|High: $1,450 USD|Avg: $766 USD|-25.0%
Clean Origin
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Clean Origin$300 USD
Retailer 4$430 USD
Retailer 3$496 USD
Retailer 8$644 USD
Retailer 2$754 USD
Retailer 7$763 USD
Retailer 6$798 USD
Retailer 9$910 USD
Retailer 5$1,062 USD
Retailer 10$1,450 USD

2 data points across 10 retailers

1 retailer

B+
Clean Origin
74b86feba431 · Oct 31
$300 USD
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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+
1.28ct Heart
$300 USD