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Oval|Lab Grown|IGI

1.51ct D SI2 Oval Lab Grown Diamond

ID • D/SI2 • IGI LG523298883

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG523298883

Diamond specifications and retailer prices

From $1,670 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,670 USD at Brilliant Earth
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 Brilliant Earth

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523298883 or 523298883. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.51
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523298883
Dimensions9.46 × 6.61 × 3.82 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.46 mm6.61 mm1.51 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523298883
Side View
Table 57.5%Crown 36.3°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 57.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $1,670 USD|Low: $1,670 USD|High: $1,700 USD|Avg: $1,685 USD|-1.8%
October 24, 2026
Brilliant Earth$1,670 USD

2 data points across 1 retailer

1 retailer

B
Brilliant Earth
6451208B · Oct 29
$1,670 USD
View

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
1.51ct Oval
$1,670 USD