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Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

VG • D/SI2 • GIA 6521445078

Certificate GIA 6521445078

Diamond specifications and retailer prices

From £3,217 GBP
$4,311 USD
As of October 30, 2026
Save £3,304 GBP (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,098 GBP at NZ Jewellers · As of September 29, 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 6521445078. Listed at 15 retailers as of October 29, 2026, with a 103% 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
OriginNatural
Grading LabGIA
CertificateGIA 6521445078
Dimensions8.66 × 6.32 × 4.18 mm
L/W Ratio1.37
Top View
8.66 mm6.32 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521445078
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.1%

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: £3,849 GBP|Low: £3,073 GBP|High: £6,841 GBP|Avg: £4,111 GBP|-5.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9£3,217 GBP
Retailer 11£3,242 GBP
Retailer 2£3,284 GBP
Retailer 8£3,656 GBP
Retailer 7£3,689 GBP
Retailer 1£3,849 GBP
Retailer 3£3,943 GBP
Retailer 4£3,973 GBP
Retailer 10£4,121 GBP
Retailer 6£4,347 GBP
Retailer 5£6,521 GBP

41 data points across 11 retailers

15 retailers£3,217 GBP to £6,521 GBP

A
Cheapest Retailer
-
£3,217 GBP
$4,311 USD
A
Retailer 2
-
£3,242 GBP
$4,344 USD
View
Final sale: no returns
Retailer 3
-
£3,284 GBP
$4,400 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
£3,656 GBP
$4,899 USD
View
A
Retailer 5
-
£3,689 GBP
$4,943 USD
View
Retailer 6
-
£3,844 GBP
$5,151 USD
View
Price last confirmed 31 days ago
Retailer 7
-
£3,844 GBP
$5,151 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
£3,849 GBP
View
A
Retailer 9
-
£3,943 GBP
A$8,128 AUD
View
A
Retailer 10
-
£3,973 GBP
View
A
Retailer 11
-
£4,121 GBP
$5,522 USD
View
A
Retailer 12
-
£4,347 GBP
€5,547 EUR
View
Retailer 13
-
£4,436 GBP
$5,944 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
£6,521 GBP
View
Most Expensive
NZ Jewellers
3ca13b80-03f2-44a9-9ecc-1ae90fe81a62 · Sep 29
£7,098 GBP
$9,510 USD
View
Price last confirmed 31 days ago
14 more retailers have this diamond
Prices start from £3,217 GBPSave up to £3,304 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
£3,217 GBP