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Round|Natural|GIA

1.51ct H I1 Round Natural Diamond

EX • H/I1 • GIA 2537660316

Certificate GIA 2537660316

Diamond specifications and retailer prices

From £2,601 GBP
$3,485 USD
As of November 1, 2026
Save £2,629 GBP (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,230 GBP at NZ Jewellers · As of October 27, 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 H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 2537660316. Listed at 9 retailers as of October 27, 2026, with prices from £2,601 to £5,230, a £2,629 spread on the same certified stone. NZ Jewellers lists it at £5,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2537660316
Dimensions7.29 × 7.33 × 4.58 mm
L/W Ratio1.01
Top View
7.29 mm7.33 mm1.51 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2537660316
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°CuletDepth 62.7%

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 1
Current: £5,230 GBP|Low: £2,601 GBP|High: £5,230 GBP|Avg: £3,260 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5£2,601 GBP
Retailer 11£2,641 GBP
Retailer 4£2,751 GBP
Retailer 9£2,910 GBP
Retailer 6£3,002 GBP
Retailer 7£3,002 GBP
Retailer 3£3,214 GBP
Retailer 2£3,383 GBP
Retailer 8£3,464 GBP
Retailer 10£3,572 GBP
NZ Jewellers£5,230 GBP

24 data points across 11 retailers

9 retailers£2,601 GBP to £5,230 GBP

A
Cheapest Retailer
-
£2,601 GBP
$3,485 USD
B+
Retailer 2
-
£2,641 GBP
$3,539 USD
View
B+
Retailer 3
-
£2,751 GBP
$3,686 USD
View
B+
Retailer 4
-
£2,910 GBP
$3,900 USD
View
Retailer 5
-
£3,002 GBP
$4,022 USD
View
Price last confirmed 8 days ago
Retailer 6
-
£3,002 GBP
$4,022 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£3,383 GBP
€4,317 EUR
View
B+
Retailer 8
-
£3,464 GBP
$4,641 USD
View
Most Expensive
B
NZ Jewellers
792c9c3b-183e-4d9d-9ad3-35cb36fcb84b · Oct 27
£5,230 GBP
$7,008 USD
View
8 more retailers have this diamond
Prices start from £2,601 GBPSave up to £2,629 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
£2,601 GBP