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Oval|Lab Grown|IGI

1.00ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG838656486

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG838656486

Diamond specifications and retailer prices

From $1,582 NZD
$890 USD
As of November 2, 2026
2 retailers carry this diamond
Most expensive: $1,582 NZD at Brilliant Earth
View at Brilliant Earth

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838656486 or 838656486. Listed at 2 retailers as of November 2, 2026. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838656486
Dimensions7.81 × 5.63 × 3.58 mm
L/W Ratio1.39
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
7.81 mm5.63 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838656486
Side View
Table 62.0%Crown 37.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $1,582 NZD|Low: $309 NZD|High: $1,582 NZD|Avg: $869 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 1, 2026
Retailer 4$309 NZD
Retailer 7$414 NZD
Retailer 3$523 NZD
Retailer 9$528 NZD
Retailer 2$545 NZD
Retailer 8$588 NZD
Retailer 5$1,115 NZD
Retailer 6$1,494 NZD
Brilliant Earth$1,582 NZD

4 data points across 9 retailers

2 retailers

Retailer 1
-
$1,494 NZD
£662 GBP
Price last confirmed 33 days ago
Most Expensive
B
Brilliant Earth
21610000A · Nov 2
$1,582 NZD
$890 USD
View
1 more retailer has this diamond

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
1.00ct Oval
$1,582 NZD