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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG743593750

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743593750

Diamond specifications and retailer prices

From £304 GBP
As of November 4, 2026
Save £1,918 GBP (86%) vs most expensive(unlock to see where)
32 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 LG743593750 or 743593750. Listed at 32 retailers as of November 4, 2026, with prices from £304 to £2,222, a £1,918 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 angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593750
Dimensions7.31 × 7.35 × 4.53 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
7.31 mm7.35 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593750
Side View
Table 57.0%Crown 35.4°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 4
Current: £2,222 GBP|Low: £304 GBP|High: £2,615 GBP|Avg: £955 GBP
Do Amore Diamonds
Retailer 2
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November 4, 2026
Retailer 9£304 GBP
Retailer 23£422 GBP
Retailer 4£441 GBP
Retailer 3£445 GBP
Retailer 8£485 GBP
Retailer 11£500 GBP
Retailer 17£554 GBP
Retailer 10£559 GBP
Retailer 19£590 GBP
Retailer 13£611 GBP
Retailer 12£630 GBP
Retailer 14£787 GBP
Retailer 2£799 GBP
Retailer 5£910 GBP
Retailer 6£1,173 GBP
Retailer 7£1,205 GBP
Retailer 15£1,216 GBP
Retailer 21£1,287 GBP
Retailer 16£1,301 GBP
Retailer 18£1,339 GBP
Retailer 20£1,678 GBP
Retailer 22£1,682 GBP
Do Amore Diamonds£2,222 GBP

38 data points across 23 retailers

32 retailers£304 GBP to £2,222 GBP

Retailer 1
-
£250 GBP
Price last confirmed 25 days ago
Retailer 2
-
£264 GBP
View
Price last confirmed 37 days ago
Retailer 3
-
£290 GBP
View
Price last confirmed 29 days ago
A
Retailer 4
-
£304 GBP
View
Final sale: no returns
Retailer 5
-
£307 GBP
View
Price last confirmed 43 days ago
Retailer 6
-
£310 GBP
View
Price last confirmed 25 days ago
Retailer 7
-
£310 GBP
View
Price last confirmed 33 days ago
A
Retailer 8
-
£310 GBP
View
Retailer 9
-
£324 GBP
View
Price last confirmed 36 days ago
A
Retailer 10
-
£422 GBP
View
A
Retailer 11
-
£445 GBP
View
A
Retailer 12
-
£485 GBP
View
A
Retailer 13
-
£500 GBP
View
A
Retailer 14
-
£554 GBP
View
A
Retailer 15
-
£559 GBP
View
A
Retailer 16
-
£590 GBP
View
A
Retailer 17
-
£611 GBP
View
A
Retailer 18
-
£630 GBP
View
B+
Retailer 19
-
£787 GBP
View
B+
Retailer 20
-
£799 GBP
View
B+
Retailer 21
-
£910 GBP
View
Retailer 22
-
£1,101 GBP
View
Price last confirmed 26 days ago
Retailer 23
-
£1,165 GBP
View
Price last confirmed 35 days ago
B+
Retailer 24
-
£1,173 GBP
View
B+
Retailer 25
-
£1,205 GBP
View
B+
Retailer 26
-
£1,216 GBP
View
B
Retailer 27
-
£1,287 GBP
View
B
Retailer 28
-
£1,301 GBP
View
B+
Retailer 29
-
£1,339 GBP
View
B
Retailer 30
-
£1,678 GBP
View
B
Retailer 31
-
£1,682 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9D28CE672 · Nov 4
£2,222 GBP
$3,000 USD
View
31 more retailers have this diamond
Prices start from £304 GBPSave up to £1,918 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
£304 GBP