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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG743550584

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743550584

Diamond specifications and retailer prices

From £250 GBP
As of November 3, 2026
Save £1,972 GBP (89%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £2,222 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743550584 or 743550584. Listed at 26 retailers as of November 3, 2026, with prices from £250 to £2,222, a £1,972 spread on the same certified stone. Do Amore Diamonds lists it at £2,222. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743550584
Dimensions7.38 × 7.33 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.38 mm7.33 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743550584
Side View
Table 57.0%Crown 35.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.8%

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 3
Current: £799 GBP|Low: £250 GBP|High: £2,533 GBP|Avg: £805 GBP|-0.5%
Retailer 1
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Retailer 19
November 4, 2026
Retailer 5£250 GBP
Retailer 4£290 GBP
Retailer 3£304 GBP
Retailer 8£310 GBP
Retailer 7£441 GBP
Retailer 2£445 GBP
Retailer 10£467 GBP
Retailer 11£485 GBP
Retailer 12£539 GBP
Retailer 15£554 GBP
Retailer 16£590 GBP
Retailer 14£611 GBP
Retailer 1£799 GBP
Retailer 9£910 GBP
Retailer 6£1,101 GBP
Retailer 18£1,287 GBP
Retailer 13£1,337 GBP
Retailer 17£1,339 GBP
Retailer 19£1,682 GBP

32 data points across 19 retailers

26 retailers£250 GBP to £2,222 GBP

A
Cheapest Retailer
-
£250 GBP
A
Retailer 2
-
£290 GBP
View
A
Retailer 3
-
£304 GBP
View
Final sale: no returns
A
Retailer 4
-
£310 GBP
View
A
Retailer 5
-
£445 GBP
View
A
Retailer 6
-
£467 GBP
View
A
Retailer 7
-
£485 GBP
View
A
Retailer 8
-
£539 GBP
View
A
Retailer 9
-
£554 GBP
View
A
Retailer 10
-
£559 GBP
View
A
Retailer 11
-
£590 GBP
View
A
Retailer 12
-
£611 GBP
View
A
Retailer 13
-
£630 GBP
View
B+
Retailer 14
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£787 GBP
View
B+
Retailer 15
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£799 GBP
View
B+
Retailer 16
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£910 GBP
View
B+
Retailer 17
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£1,101 GBP
View
B+
Retailer 18
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£1,173 GBP
View
B+
Retailer 19
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£1,205 GBP
View
B+
Retailer 20
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£1,216 GBP
View
B+
Retailer 21
-
£1,287 GBP
View
B
Retailer 22
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£1,301 GBP
View
B+
Retailer 23
-
£1,337 GBP
View
B+
Retailer 24
-
£1,339 GBP
View
B
Retailer 25
-
£1,682 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DDA56D148 · Nov 4
£2,222 GBP
$3,000 USD
View
25 more retailers have this diamond
Prices start from £250 GBPSave up to £1,972 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
£250 GBP