Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

EX • D/I1 • GIA 7506022576

Shape and cutting style on the report: Round

Certificate GIA 7506022576

Diamond specifications and retailer prices

From £3,649 GBP
$4,889 USD
As of October 30, 2026
Save £3,349 GBP (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £6,998 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 7506022576. Listed at 9 retailers as of October 30, 2026, with a 92% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7506022576
Dimensions7.31 × 7.35 × 4.53 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.31 mm7.35 mm1.51 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7506022576
Side View
Table 60.0%Crown 34°GirdlePavilion 41.8°Culet: NoneDepth 61.8%

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: Oct 30
Current: £4,736 GBP|Low: £3,078 GBP|High: £4,979 GBP|Avg: £4,032 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£3,078 GBP
Retailer 4£3,649 GBP
Retailer 3£3,685 GBP
Retailer 2£4,184 GBP
Retailer 1£4,736 GBP
Retailer 5£4,979 GBP

16 data points across 6 retailers

9 retailers£3,649 GBP to £6,998 GBP

A
Cheapest Retailer
-
£3,649 GBP
$4,889 USD
A
Retailer 2
-
£3,685 GBP
$4,938 USD
View
Retailer 3
-
£4,184 GBP
$5,606 USD
View
Price last confirmed 30 days ago
B+
Retailer 4
-
£4,184 GBP
$5,606 USD
View
Retailer 5
-
£4,184 GBP
$5,606 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
£4,736 GBP
€6,043 EUR
View
Retailer 7
-
£4,828 GBP
$6,469 USD
View
Price last confirmed 33 days ago
B
Retailer 8
-
£6,998 GBP
$9,376 USD
View
Most Expensive
NZ Jewellers
4d78864c-9dd5-4cae-a22f-1f6ef20f7649 · Sep 28
£6,998 GBP
$9,376 USD
View
Price last confirmed 33 days ago
8 more retailers have this diamond
Prices start from £3,649 GBPSave up to £3,349 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
£3,649 GBP