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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 5533751663

Certificate GIA 5533751663

Diamond specifications and retailer prices

From £3,076 GBP
HK$32,200 HKD
As of October 31, 2026
Save £3,939 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,015 GBP at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5533751663. Listed at 16 retailers as of October 30, 2026, with prices from £3,076 to £7,015, a £3,939 spread on the same certified stone. NZ Jewellers lists it at £7,015. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.92°
Pavilion angle33.06°
OriginNatural
Grading LabGIA
CertificateGIA 5533751663
Dimensions8.93 × 6.05 × 3.79 mm
L/W Ratio1.48
Top View
8.93 mm6.05 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5533751663
Side View
Table 55.0%Crown 38.92°Girdle: Extremely ThickPavilion 33.06°Culet: NoneDepth 62.6%

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 31
Current: £3,076 GBP|Low: £3,076 GBP|High: £6,761 GBP|Avg: £4,289 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 1£3,076 GBP
Retailer 8£3,429 GBP
Retailer 9£3,598 GBP
Retailer 2£3,759 GBP
Retailer 10£3,870 GBP
Retailer 6£4,092 GBP
Retailer 5£4,104 GBP
Retailer 11£4,194 GBP
Retailer 3£4,227 GBP
Retailer 4£4,747 GBP
Retailer 7£6,716 GBP

43 data points across 11 retailers

16 retailers£3,076 GBP to £7,015 GBP

A
Cheapest Retailer
-
£3,076 GBP
HK$32,200 HKD
B+
Retailer 2
-
£3,429 GBP
$4,595 USD
View
A
Retailer 3
-
£3,598 GBP
SGD 6,515 SGD
View
B+
Retailer 4
-
£3,658 GBP
$4,901 USD
View
B+
Retailer 5
-
£3,759 GBP
$5,036 USD
View
B+
Retailer 6
-
£3,870 GBP
$5,186 USD
View
Final sale: no returns
B+
Retailer 7
-
£3,910 GBP
SGD 7,079 SGD
View
B+
Retailer 8
-
£4,092 GBP
View
B+
Retailer 9
-
£4,104 GBP
View
B+
Retailer 10
-
£4,194 GBP
$5,620 USD
View
B+
Retailer 11
-
£4,194 GBP
$5,620 USD
View
B+
Retailer 12
-
£4,227 GBP
$5,664 USD
View
B+
Retailer 13
-
£4,747 GBP
€6,058 EUR
View
B
Retailer 14
-
£4,839 GBP
$6,484 USD
View
B
Retailer 15
-
£6,716 GBP
View
Most Expensive
B
NZ Jewellers
e9dd5e77-face-4b88-975f-e76e30e91dc7 · Oct 30
£7,015 GBP
$9,399 USD
View
15 more retailers have this diamond
Prices start from £3,076 GBPSave up to £3,939 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
£3,076 GBP