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Oval|Lab Grown|IGI

1.51ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG763658553

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG763658553

Diamond specifications and retailer prices

From £1,136 GBP
$1,520 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £1,136 GBP 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG763658553 or 763658553. Listed at a single retailer as of November 6, 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763658553
Dimensions8.95 × 6.58 × 4.07 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Top View
8.95 mm6.58 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763658553
Side View
Table 62.0%Crown 37.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £1,136 GBP|Low: £208 GBP|High: £1,390 GBP|Avg: £596 GBP|+21.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
April 19, 2026
Retailer 8£208 GBP
Retailer 6£366 GBP
Retailer 4£371 GBP
Retailer 7£412 GBP
Retailer 2£573 GBP
Retailer 5£699 GBP
Retailer 3£720 GBP
Brilliant Earth£1,136 GBP

37 data points across 8 retailers

1 retailer

B
Brilliant Earth
17215551AB · Nov 6
£1,136 GBP
$1,520 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
£1,136 GBP