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Radiant|Natural|IGI

1.51ct I IF Radiant Natural Diamond

VG • I/IF • IGI 773617342

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 773617342

Diamond specifications and retailer prices

From £2,520 GBP
As of November 6, 2026
Save £2,246 GBP (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,965 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 773617342. Listed at 13 retailers as of November 2, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.1°
Pavilion angle28.2°
OriginNatural
Grading LabIGI
CertificateIGI 773617342
Dimensions7.62 × 5.50 × 3.82 mm
L/W Ratio1.39
Top View
7.62 mm5.50 mm1.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 773617342
Side View
Table 56.0%Crown 32.1°Girdle: ThickPavilion 28.2°CuletDepth 69.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,941 GBP|Low: £2,010 GBP|High: £4,823 GBP|Avg: £2,963 GBP|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3£2,010 GBP
Retailer 4£2,176 GBP
Retailer 5£2,520 GBP
Retailer 11£2,530 GBP
Retailer 9£2,533 GBP
Retailer 10£2,631 GBP
Retailer 1£2,941 GBP
Retailer 2£2,959 GBP
Retailer 8£3,289 GBP
Retailer 6£3,479 GBP
Retailer 12£3,655 GBP
Retailer 7£4,766 GBP

37 data points across 12 retailers

13 retailers£2,520 GBP to £4,766 GBP

A
Cheapest Retailer
-
£2,520 GBP
A
Retailer 2
-
£2,530 GBP
View
A
Retailer 3
-
£2,533 GBP
View
A
Retailer 4
-
£2,631 GBP
View
Final sale: no returns
Retailer 5
-
£2,850 GBP
View
Price last confirmed 37 days ago
A
Retailer 6
-
£2,941 GBP
View
A
Retailer 7
-
£2,959 GBP
View
Retailer 8
-
£2,960 GBP
View
Price last confirmed 38 days ago
B+
Retailer 9
-
£3,289 GBP
View
A
Retailer 10
-
£3,479 GBP
View
B+
Retailer 11
-
£3,655 GBP
View
B+
Retailer 12
-
£4,766 GBP
View
Most Expensive
NZ Jewellers
ffa03cae-10b7-4fb8-a85c-200f15ccbe2d · Sep 29
£4,965 GBP
$6,646 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from £2,520 GBPSave up to £2,246 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 Radiant
£2,520 GBP