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Oval|Natural|GIA

0.63ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1543647504

Certificate GIA 1543647504

Diamond specifications and retailer prices

From £482 GBP
$646 USD
As of October 28, 2026
Save £1,155 GBP (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,637 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.63ct natural oval diamond

This 0.63ct natural oval sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543647504. Listed at 15 retailers as of October 27, 2026, with prices from £482 to £1,637, a £1,155 spread on the same certified stone. NZ Jewellers lists it at £1,637. 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

0.63
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1543647504
Dimensions6.84 × 4.73 × 3.06 mm
L/W Ratio1.45
Key to symbols
Crystal
Top View
6.84 mm4.73 mm0.63 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1543647504
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 64.6%

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 28
Current: £1,637 GBP|Low: £441 GBP|High: £1,637 GBP|Avg: £757 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
October 28, 2026
Retailer 12£482 GBP
Retailer 7£522 GBP
Retailer 14£522 GBP
Retailer 4£542 GBP
Retailer 6£602 GBP
Retailer 15£602 GBP
Retailer 5£637 GBP
Retailer 8£642 GBP
Retailer 2£644 GBP
Retailer 13£657 GBP
Retailer 9£738 GBP
Retailer 10£778 GBP
Retailer 3£785 GBP
Retailer 11£1,212 GBP
NZ Jewellers£1,637 GBP

39 data points across 15 retailers

15 retailers£482 GBP to £1,637 GBP

A
Cheapest Retailer
-
£482 GBP
$646 USD
Final sale: no returns
A
Retailer 2
-
£522 GBP
$699 USD
View
Retailer 3
-
£522 GBP
$699 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£542 GBP
$726 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£602 GBP
$807 USD
View
B+
Retailer 6
-
£602 GBP
$807 USD
View
B+
Retailer 7
-
£637 GBP
$853 USD
View
B+
Retailer 8
-
£642 GBP
View
B+
Retailer 9
-
£644 GBP
View
B+
Retailer 10
-
£657 GBP
$880 USD
View
B
Retailer 11
-
£738 GBP
€942 EUR
View
B+
Retailer 12
-
£778 GBP
ZAR 16,832 ZAR
View
Retailer 13
-
£785 GBP
A$1,618 AUD
View
Price last confirmed 29 days ago
Retailer 14
-
£1,212 GBP
View
Price last confirmed 12 days ago
Most Expensive
C
NZ Jewellers
f6f149dc-5fce-4d7a-a8ef-7b55ea064659 · Oct 27
£1,637 GBP
$2,193 USD
View
14 more retailers have this diamond
Prices start from £482 GBPSave up to £1,155 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
0.63ct Oval
£482 GBP