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Round|Lab Grown|IGI

1.51ct F IF Round Lab Grown Diamond

EX • F/IF • IGI LG808631273

Shape and cutting style on the report: Round brilliant

Certificate IGI LG808631273

Diamond specifications and retailer prices

From £251 GBP
$337 USD
As of November 1, 2026
Save £1,788 GBP (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,040 GBP at Yadav Diamonds · As of October 30, 2026
View at Yadav Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG808631273 or 808631273. Listed at 23 retailers as of October 30, 2026, with prices from £251 to £2,040, a £1,788 spread on the same certified stone. Yadav Diamonds lists it at £2,040. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808631273
Dimensions7.44 × 7.46 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.44 mm7.46 mm1.51 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808631273
Side View
Table 62.0%Crown 32.8°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £491 GBP|Low: £247 GBP|High: £1,464 GBP|Avg: £714 GBP|-0.9%
Retailer 1
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Retailer 21
November 2, 2026
Retailer 19£251 GBP
Retailer 5£291 GBP
Retailer 8£311 GBP
Retailer 21£311 GBP
Retailer 9£353 GBP
Retailer 20£417 GBP
Retailer 11£425 GBP
Retailer 1£491 GBP
Retailer 2£502 GBP
Retailer 12£538 GBP
Retailer 15£557 GBP
Retailer 10£646 GBP
Retailer 17£724 GBP
Retailer 18£727 GBP
Retailer 3£1,002 GBP
Retailer 4£1,010 GBP
Retailer 7£1,034 GBP
Retailer 14£1,180 GBP
Retailer 16£1,249 GBP
Retailer 6£1,343 GBP
Retailer 13£1,461 GBP

34 data points across 21 retailers

23 retailers£251 GBP to £2,040 GBP

A
Cheapest Retailer
-
£251 GBP
$337 USD
A
Retailer 2
-
£291 GBP
$391 USD
View
A
Retailer 3
-
£311 GBP
$418 USD
View
Retailer 4
-
£311 GBP
$418 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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£353 GBP
HK$3,700 HKD
View
A
Retailer 6
-
£417 GBP
$560 USD
View
A
Retailer 7
-
£425 GBP
$570 USD
View
A
Retailer 8
-
£491 GBP
€628 EUR
View
A
Retailer 9
-
£502 GBP
$674 USD
View
A
Retailer 10
-
£538 GBP
ZAR 11,654 ZAR
View
A
Retailer 11
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£557 GBP
View
B+
Retailer 12
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£646 GBP
$867 USD
View
B+
Retailer 13
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£724 GBP
$971 USD
View
B+
Retailer 14
-
£727 GBP
A$1,500 AUD
View
B
Retailer 15
-
£1,002 GBP
$1,345 USD
View
B
Retailer 16
-
£1,010 GBP
SGD 1,831 SGD
View
B
Retailer 17
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£1,034 GBP
$1,388 USD
View
B
Retailer 18
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£1,120 GBP
$1,503 USD
View
B
Retailer 19
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£1,180 GBP
$1,584 USD
View
B
Retailer 20
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£1,249 GBP
View
B
Retailer 21
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£1,343 GBP
$1,802 USD
View
Retailer 22
-
£1,461 GBP
$1,960 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Yadav Diamonds
13009515 · Oct 30
£2,040 GBP
$2,737 USD
View
22 more retailers have this diamond
Prices start from £251 GBPSave up to £1,788 GBP

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.

A
1.51ct Round
£251 GBP