Oval|Lab Grown|IGI

1.55ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG771630888

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG771630888

Diamond specifications and retailer prices

From $1,210 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,210 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 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG771630888 or 771630888. Listed at a single retailer as of November 2, 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

1.55
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771630888
Dimensions9.28 × 6.50 × 4.04 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Top View
9.28 mm6.50 mm1.55 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771630888
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.2%

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: $1,210 USD|Low: $280 USD|High: $1,210 USD|Avg: $484 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
April 14, 2026
Retailer 5$280 USD
Retailer 2$426 USD
Retailer 3$485 USD
Retailer 4$547 USD
Brilliant Earth$1,210 USD

6 data points across 5 retailers

1 retailer

B
Brilliant Earth
17569991A · Nov 2
$1,210 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
1.55ct Oval
$1,210 USD