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Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5536737558

Certificate GIA 5536737558

Diamond specifications and retailer prices

From £4,819 GBP
$6,457 USD
As of October 30, 2026
Save £6,039 GBP (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £10,858 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536737558. Listed at 25 retailers as of October 30, 2026, with prices from £4,819 to £10,858, a £6,039 spread on the same certified stone. NZ Jewellers lists it at £10,858. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5536737558
Dimensions8.80 × 6.37 × 4.11 mm
L/W Ratio1.38
Top View
8.80 mm6.37 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5536737558
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.5%

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 30
Current: £6,050 GBP|Low: £4,819 GBP|High: £9,156 GBP|Avg: £6,387 GBP|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8£4,819 GBP
Retailer 5£5,194 GBP
Retailer 6£5,972 GBP
Retailer 1£6,050 GBP
Retailer 7£6,073 GBP
Retailer 3£6,308 GBP
Retailer 2£7,095 GBP
Retailer 4£9,095 GBP

42 data points across 8 retailers

25 retailers£4,819 GBP to £10,858 GBP

B+
Cheapest Retailer
-
£4,819 GBP
$6,457 USD
B+
Retailer 2
-
£5,040 GBP
$6,753 USD
View
B+
Retailer 3
-
£5,083 GBP
$6,811 USD
View
B+
Retailer 4
-
£5,194 GBP
$6,960 USD
View
Final sale: no returns
B+
Retailer 5
-
£5,214 GBP
$6,986 USD
View
B+
Retailer 6
-
£5,364 GBP
CA$9,982 CAD
View
B+
Retailer 7
-
£5,429 GBP
$7,274 USD
View
B+
Retailer 8
-
£5,524 GBP
$7,402 USD
View
B+
Retailer 9
-
£5,783 GBP
$7,749 USD
View
B+
Retailer 10
-
£5,881 GBP
$7,880 USD
View
B+
Retailer 11
-
£5,972 GBP
$8,002 USD
View
B+
Retailer 12
-
£6,008 GBP
$8,050 USD
View
B+
Retailer 13
-
£6,050 GBP
View
B
Retailer 14
-
£6,073 GBP
$8,137 USD
View
B
Retailer 15
-
£6,223 GBP
$8,338 USD
View
B+
Retailer 16
-
£6,308 GBP
View
B
Retailer 17
-
£6,471 GBP
$8,670 USD
View
B
Retailer 18
-
£6,471 GBP
$8,670 USD
View
B+
Retailer 19
-
£6,562 GBP
$8,792 USD
View
B
Retailer 20
-
£6,687 GBP
$8,960 USD
View
B
Retailer 21
-
£6,786 GBP
$9,093 USD
View
B
Retailer 22
-
£7,095 GBP
€9,054 EUR
View
B
Retailer 23
-
£7,167 GBP
$9,603 USD
View
B
Retailer 24
-
£9,095 GBP
View
Most Expensive
B
NZ Jewellers
0bc98995-06ed-4b16-9829-d654d88a7075 · Oct 30
£10,858 GBP
$14,548 USD
View
24 more retailers have this diamond
Prices start from £4,819 GBPSave up to £6,039 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
£4,819 GBP