Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 6515380729

Certificate GIA 6515380729

Diamond specifications and retailer prices

From £4,968 GBP
$6,656 USD
As of October 30, 2026
Save £3,842 GBP (44%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £10,516 GBP at NZ Jewellers · As of October 20, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6515380729. Listed at 26 retailers as of October 29, 2026, with a 77% 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.62°
Pavilion angle38.67°
OriginNatural
Grading LabGIA
CertificateGIA 6515380729
Dimensions8.90 × 6.29 × 3.98 mm
L/W Ratio1.41
Top View
8.90 mm6.29 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6515380729
Side View
Table 56.0%Crown 41.62°Girdle: MED-THKPavilion 38.67°Culet: NoneDepth 63.2%

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: £5,936 GBP|Low: £4,997 GBP|High: £8,868 GBP|Avg: £6,685 GBP|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7£4,997 GBP
Retailer 8£5,257 GBP
Retailer 6£5,258 GBP
Retailer 1£5,936 GBP
Retailer 3£5,942 GBP
Retailer 2£6,870 GBP
Retailer 5£8,682 GBP
Retailer 4£8,809 GBP

38 data points across 8 retailers

26 retailers£4,968 GBP to £8,809 GBP

A
Cheapest Retailer
-
£4,968 GBP
$6,656 USD
A
Retailer 2
-
£4,997 GBP
$6,695 USD
View
A
Retailer 3
-
£5,257 GBP
$7,044 USD
View
Final sale: no returns
A
Retailer 4
-
£5,258 GBP
$7,045 USD
View
Retailer 5
-
£5,258 GBP
$7,045 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£5,302 GBP
$7,104 USD
View
B+
Retailer 7
-
£5,600 GBP
$7,503 USD
View
Retailer 8
-
£5,696 GBP
$7,632 USD
View
Price last confirmed 23 days ago
Retailer 9
-
£5,696 GBP
$7,632 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£5,696 GBP
$7,632 USD
View
Price last confirmed 40 days ago
Retailer 11
-
£5,784 GBP
$7,750 USD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
£5,936 GBP
View
B+
Retailer 13
-
£5,942 GBP
View
B+
Retailer 14
-
£6,045 GBP
$8,100 USD
View
B+
Retailer 15
-
£6,045 GBP
$8,100 USD
View
B+
Retailer 16
-
£6,247 GBP
$8,370 USD
View
Retailer 17
-
£6,572 GBP
$8,806 USD
View
Price last confirmed 22 days ago
Retailer 18
-
£6,572 GBP
$8,806 USD
View
Price last confirmed 40 days ago
Retailer 19
-
£6,572 GBP
$8,806 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
£6,572 GBP
$8,806 USD
View
B+
Retailer 21
-
£6,870 GBP
€8,767 EUR
View
B
Retailer 22
-
£8,682 GBP
View
B
Retailer 23
-
£8,809 GBP
View
Retailer 24
-
£10,516 GBP
$14,090 USD
View
Price last confirmed 32 days ago
Retailer 25
-
£10,516 GBP
$14,090 USD
View
Price last confirmed 40 days ago
Most Expensive
NZ Jewellers
1433cd66-f0c9-4862-879f-4bd631812f65 · Oct 20
£10,516 GBP
$14,090 USD
View
Price last confirmed 10 days ago
25 more retailers have this diamond
Prices start from £4,968 GBPSave up to £3,842 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
£4,968 GBP