Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 7541814743

Certificate GIA 7541814743

Diamond specifications and retailer prices

From £2,340 GBP
HK$24,500 HKD
As of October 26, 2026
Save £1,370 GBP (37%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £5,438 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7541814743. Listed at 21 retailers as of October 26, 2026, with a 59% 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.6°
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 7541814743
Dimensions8.32 × 6.37 × 4.30 mm
L/W Ratio1.31
Girdle conditionFaceted
Top View
8.32 mm6.37 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7541814743
Side View
Table 59.0%Crown 39.6°Girdle: THK-VTKPavilion 39°Culet: NDepth 67.5%

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: Oct 26
Current: £5,438 GBP|Low: £2,340 GBP|High: £5,537 GBP|Avg: £3,232 GBP|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 26, 2026
Retailer 6£2,340 GBP
Retailer 13£2,426 GBP
Retailer 11£2,510 GBP
Retailer 3£2,556 GBP
Retailer 12£2,610 GBP
Retailer 8£2,828 GBP
Retailer 18£2,828 GBP
Retailer 21£2,855 GBP
Retailer 5£2,933 GBP
Retailer 19£2,937 GBP
Retailer 10£3,015 GBP
Retailer 15£3,028 GBP
Retailer 16£3,144 GBP
Retailer 9£3,194 GBP
Retailer 20£3,194 GBP
Retailer 14£3,263 GBP
Retailer 4£3,299 GBP
Retailer 2£3,313 GBP
Retailer 7£3,710 GBP
Retailer 17£5,227 GBP
NZ Jewellers£5,438 GBP

22 data points across 21 retailers

21 retailers£2,340 GBP to £3,710 GBP

B+
Cheapest Retailer
-
£2,340 GBP
HK$24,500 HKD
A
Retailer 2
-
£2,426 GBP
$3,250 USD
View
A
Retailer 3
-
£2,426 GBP
$3,250 USD
View
B+
Retailer 4
-
£2,510 GBP
$3,363 USD
View
Retailer 5
-
£2,556 GBP
$3,425 USD
View
Price last confirmed 7 days ago
Retailer 6
-
£2,828 GBP
$3,789 USD
View
Price last confirmed 7 days ago
Retailer 7
-
£2,828 GBP
$3,789 USD
View
Price last confirmed 8 days ago
Retailer 8
-
£2,855 GBP
$3,825 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£2,933 GBP
$3,930 USD
View
Retailer 10
-
£2,937 GBP
$3,935 USD
View
Price last confirmed 7 days ago
Retailer 11
-
£3,015 GBP
$4,040 USD
View
Price last confirmed 9 days ago
Retailer 12
-
£3,028 GBP
View
Price last confirmed 7 days ago
Retailer 13
-
£3,144 GBP
View
Price last confirmed 7 days ago
B+
Retailer 14
-
£3,194 GBP
$4,280 USD
View
B+
Retailer 15
-
£3,194 GBP
$4,280 USD
View
Retailer 16
-
£3,263 GBP
$4,372 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
£3,299 GBP
$4,420 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
£3,313 GBP
€4,228 EUR
View
B+
Retailer 19
-
£3,710 GBP
$4,971 USD
View
Retailer 20
-
£5,227 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
5035ff43-86d5-4ac4-8539-80769989a9b2 · Oct 23
£5,438 GBP
$7,286 USD
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from £2,340 GBPSave up to £1,370 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 Oval
£2,340 GBP