CaratHunter
Plans
Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 2516454924

Certificate GIA 2516454924

Diamond specifications and retailer prices

From HK$57,219 HKD
$7,293 USD
As of October 30, 2026
Save HK$64,578 HKD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$121,797 HKD 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 E 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 2516454924. Listed at 16 retailers as of October 30, 2026, with prices from HK$57,219 to HK$121,797, a HK$64,578 spread on the same certified stone. NZ Jewellers lists it at HK$121,797. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.98°
Pavilion angle39.08°
OriginNatural
Grading LabGIA
CertificateGIA 2516454924
Dimensions8.72 × 6.35 × 4.16 mm
L/W Ratio1.37
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.72 mm6.35 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516454924
Side View
Table 63.0%Crown 36.98°Girdle: THK-VTKPavilion 39.08°Culet: NDepth 65.5%

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 30
Current: HK$67,739 HKD|Low: HK$56,010 HKD|High: HK$102,709 HKD|Avg: HK$69,844 HKD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10HK$57,219 HKD
Retailer 11HK$60,883 HKD
Retailer 9HK$61,102 HKD
Retailer 2HK$62,177 HKD
Retailer 4HK$64,890 HKD
Retailer 12HK$65,974 HKD
Retailer 1HK$67,739 HKD
Retailer 7HK$68,636 HKD
Retailer 3HK$70,070 HKD
Retailer 6HK$79,455 HKD
Retailer 8HK$87,883 HKD
Retailer 5HK$102,032 HKD

42 data points across 12 retailers

16 retailersHK$57,219 HKD to HK$121,797 HKD

A
Cheapest Retailer
-
HK$57,219 HKD
$7,293 USD
B+
Retailer 2
-
HK$60,883 HKD
$7,760 USD
View
B+
Retailer 3
-
HK$61,102 HKD
$7,788 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$61,110 HKD
$7,789 USD
View
B+
Retailer 5
-
HK$62,177 HKD
$7,925 USD
View
B+
Retailer 6
-
HK$64,890 HKD
$8,271 USD
View
B+
Retailer 7
-
HK$65,974 HKD
$8,409 USD
View
B+
Retailer 8
-
HK$66,987 HKD
$8,538 USD
View
B+
Retailer 9
-
HK$67,739 HKD
£6,798 GBP
View
B+
Retailer 10
-
HK$68,636 HKD
A$13,459 AUD
View
B+
Retailer 11
-
HK$70,070 HKD
$8,931 USD
View
B
Retailer 12
-
HK$76,127 HKD
$9,703 USD
View
B
Retailer 13
-
HK$79,455 HKD
€9,645 EUR
View
Retailer 14
-
HK$87,883 HKD
ZAR 180,960 ZAR
View
Price last confirmed 8 days ago
B
Retailer 15
-
HK$102,032 HKD
£10,240 GBP
View
Most Expensive
B
NZ Jewellers
bc228933-8170-4d5c-84b9-6692ffa876f1 · Oct 30
HK$121,797 HKD
$15,524 USD
View
15 more retailers have this diamond
Prices start from HK$57,219 HKDSave up to HK$64,578 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$57,219 HKD