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1.28ct J VVS1 Round Lab Grown Diamond

ID • J/VVS1 • IGI LG478129723

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478129723

Diamond specifications and retailer prices

From $3,429 USD
As of October 27, 2026
1 retailer carries this diamond
Only listing: $3,429 USD at Taylor and Hart
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 Taylor and Hart

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG478129723 or 478129723. Listed at a single retailer as of October 27, 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
J
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478129723
Dimensions7.01 × 7.02 × 4.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) process.
Top View
7.01 mm7.02 mm1.28 ctJ / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478129723
Side View
Table 58.5%Crown 34.9°GirdlePavilion 40.6°Culet: NoneDepth 60.5%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 27
Current: $3,429 USD|Low: $3,429 USD|High: $3,429 USD|Avg: $3,429 USD
March 25, 2026
Taylor and Hart$3,429 USD

1 data point across 1 retailer

1 retailer

C
Taylor and Hart
OZE0IDJ · Oct 27
$3,429 USD
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C
1.28ct Round
$3,429 USD