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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 6331458484

Certificate GIA 6331458484

Diamond specifications and retailer prices

From £5,519 GBP
$7,395 USD
As of October 28, 2026
Save £6,860 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £12,379 GBP at NZ Jewellers · As of October 27, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6331458484. Listed at 19 retailers as of October 27, 2026, with prices from £5,519 to £12,379, a £6,860 spread on the same certified stone. NZ Jewellers lists it at £12,379. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6331458484
Dimensions9.09 × 6.45 × 4.07 mm
L/W Ratio1.41
Top View
9.09 mm6.45 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6331458484
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £12,379 GBP|Low: £5,519 GBP|High: £12,379 GBP|Avg: £7,595 GBP
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
October 28, 2026
Retailer 9£5,519 GBP
Retailer 15£5,795 GBP
Retailer 14£5,844 GBP
Retailer 12£6,153 GBP
Retailer 8£6,189 GBP
Retailer 4£6,241 GBP
Retailer 7£6,705 GBP
Retailer 5£6,808 GBP
Retailer 16£6,857 GBP
Retailer 11£6,883 GBP
Retailer 10£7,012 GBP
Retailer 6£7,736 GBP
Retailer 2£8,075 GBP
Retailer 3£8,923 GBP
Retailer 13£10,329 GBP
NZ Jewellers£12,379 GBP

29 data points across 16 retailers

19 retailers£5,519 GBP to £12,379 GBP

B+
Cheapest Retailer
-
£5,519 GBP
$7,395 USD
B+
Retailer 2
-
£5,795 GBP
$7,764 USD
View
B+
Retailer 3
-
£5,844 GBP
$7,830 USD
View
Retailer 4
-
£6,153 GBP
$8,245 USD
View
Price last confirmed 5 days ago
Retailer 5
-
£6,189 GBP
$8,293 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
£6,241 GBP
$8,362 USD
View
Retailer 7
-
£6,705 GBP
$8,984 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£6,808 GBP
$9,122 USD
View
Price last confirmed 8 days ago
Retailer 9
-
£6,857 GBP
A$14,135 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
£6,883 GBP
View
B
Retailer 11
-
£7,012 GBP
View
B
Retailer 12
-
£7,329 GBP
$9,820 USD
View
B
Retailer 13
-
£7,329 GBP
$9,820 USD
View
B
Retailer 14
-
£7,397 GBP
$9,911 USD
View
B
Retailer 15
-
£7,568 GBP
$10,140 USD
View
B
Retailer 16
-
£7,736 GBP
$10,366 USD
View
B
Retailer 17
-
£8,075 GBP
€10,304 EUR
View
B
Retailer 18
-
£10,329 GBP
View
Most Expensive
B
NZ Jewellers
6acc5c54-8f7c-4993-af51-bfe8f63e8e0f · Oct 27
£12,379 GBP
$16,586 USD
View
18 more retailers have this diamond
Prices start from £5,519 GBPSave up to £6,860 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.

B+
1.51ct Oval
£5,519 GBP