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Oval|Natural|GIA

1.50ct H SI2 Oval Natural Diamond

EX • H/SI2 • GIA 6512887515

Certificate GIA 6512887515

Diamond specifications and retailer prices

From £4,585 GBP
$6,143 USD
As of October 31, 2026
Save £5,739 GBP (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £10,324 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded H 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 6512887515. Listed at 25 retailers as of October 30, 2026, with prices from £4,585 to £10,324, a £5,739 spread on the same certified stone. NZ Jewellers lists it at £10,324. 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

1.50
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512887515
Dimensions9.21 × 6.44 × 3.96 mm
L/W Ratio1.43
Top View
9.21 mm6.44 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512887515
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.4%

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 31
Current: £10,324 GBP|Low: £4,585 GBP|High: £10,324 GBP|Avg: £6,630 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9£4,585 GBP
Retailer 6£4,931 GBP
Retailer 7£5,678 GBP
Retailer 8£5,780 GBP
Retailer 2£5,825 GBP
Retailer 4£5,998 GBP
Retailer 3£6,745 GBP
Retailer 5£8,649 GBP
NZ Jewellers£10,324 GBP

43 data points across 9 retailers

25 retailers£4,585 GBP to £10,324 GBP

B+
Cheapest Retailer
-
£4,585 GBP
$6,143 USD
B+
Retailer 2
-
£4,786 GBP
$6,413 USD
View
B+
Retailer 3
-
£4,877 GBP
$6,534 USD
View
B+
Retailer 4
-
£4,931 GBP
$6,607 USD
View
Final sale: no returns
B+
Retailer 5
-
£4,951 GBP
$6,634 USD
View
B+
Retailer 6
-
£5,134 GBP
CA$9,555 CAD
View
B+
Retailer 7
-
£5,162 GBP
$6,916 USD
View
B+
Retailer 8
-
£5,205 GBP
$6,974 USD
View
B
Retailer 9
-
£5,497 GBP
$7,366 USD
View
B+
Retailer 10
-
£5,592 GBP
$7,493 USD
View
B+
Retailer 11
-
£5,678 GBP
$7,608 USD
View
B+
Retailer 12
-
£5,705 GBP
$7,644 USD
View
B
Retailer 13
-
£5,780 GBP
$7,744 USD
View
B+
Retailer 14
-
£5,825 GBP
View
B
Retailer 15
-
£5,909 GBP
$7,917 USD
View
B+
Retailer 16
-
£5,998 GBP
View
B
Retailer 17
-
£6,172 GBP
$8,270 USD
View
B
Retailer 18
-
£6,172 GBP
$8,270 USD
View
B
Retailer 19
-
£6,231 GBP
$8,348 USD
View
B
Retailer 20
-
£6,374 GBP
$8,540 USD
View
B
Retailer 21
-
£6,453 GBP
$8,646 USD
View
B
Retailer 22
-
£6,745 GBP
€8,607 EUR
View
B
Retailer 23
-
£6,805 GBP
$9,118 USD
View
B
Retailer 24
-
£8,649 GBP
View
Most Expensive
B
NZ Jewellers
ae189e5f-e719-447a-814f-c49b131cc493 · Oct 30
£10,324 GBP
$13,833 USD
View
24 more retailers have this diamond
Prices start from £4,585 GBPSave up to £5,739 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+
1.50ct Oval
£4,585 GBP