Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 6525635517

Certificate GIA 6525635517

Diamond specifications and retailer prices

From HK$51,521 HKD
As of November 1, 2026
Save HK$45,175 HKD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$116,044 HKD at NZ Jewellers · As of September 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6525635517. Listed at 19 retailers as of November 1, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6525635517
Dimensions8.89 × 6.30 × 4.04 mm
L/W Ratio1.41
Top View
8.89 mm6.30 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6525635517
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.1%

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: Nov 1
Current: HK$64,043 HKD|Low: HK$51,521 HKD|High: HK$97,862 HKD|Avg: HK$69,696 HKD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 8HK$51,521 HKD
Retailer 2HK$59,246 HKD
Retailer 3HK$59,968 HKD
Retailer 11HK$63,710 HKD
Retailer 10HK$64,040 HKD
Retailer 1HK$64,043 HKD
Retailer 4HK$64,913 HKD
Retailer 9HK$65,722 HKD
Retailer 5HK$75,802 HKD
Retailer 7HK$85,238 HKD
Retailer 6HK$96,696 HKD

36 data points across 11 retailers

19 retailersHK$51,521 HKD to HK$96,696 HKD

A
Cheapest Retailer
-
HK$51,521 HKD
Retailer 2
-
HK$58,764 HKD
SGD 10,121 SGD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
HK$59,246 HKD
$7,551 USD
View
B+
Retailer 4
-
HK$59,968 HKD
$7,643 USD
View
B+
Retailer 5
-
HK$63,280 HKD
A$12,408 AUD
View
B+
Retailer 6
-
HK$63,710 HKD
$8,120 USD
View
B
Retailer 7
-
HK$64,040 HKD
$8,162 USD
View
Final sale: no returns
B+
Retailer 8
-
HK$64,043 HKD
£6,427 GBP
View
Retailer 9
-
HK$64,048 HKD
$8,163 USD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
HK$64,913 HKD
£6,514 GBP
View
Retailer 11
-
HK$65,722 HKD
A$12,887 AUD
View
Price last confirmed 12 days ago
Retailer 12
-
HK$69,383 HKD
$8,843 USD
View
Price last confirmed 26 days ago
B+
Retailer 13
-
HK$69,484 HKD
$8,856 USD
View
Retailer 14
-
HK$70,450 HKD
$8,979 USD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
HK$75,802 HKD
€9,201 EUR
View
Retailer 16
-
HK$80,054 HKD
$10,203 USD
View
Price last confirmed 24 days ago
B
Retailer 17
-
HK$85,238 HKD
ZAR 175,505 ZAR
View
B
Retailer 18
-
HK$96,696 HKD
£9,704 GBP
View
Most Expensive
NZ Jewellers
e9163b27-0ca1-4f3a-9cca-51d1a823de61 · Sep 30
HK$116,044 HKD
$14,790 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from HK$51,521 HKDSave up to HK$45,175 HKD

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
HK$51,521 HKD