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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 2427873957

Certificate GIA 2427873957

Diamond specifications and retailer prices

From HK$44,388 HKD
As of November 1, 2026
Save HK$56,524 HKD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$100,911 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2427873957. Listed at 19 retailers as of October 30, 2026, with prices from HK$44,388 to HK$100,911, a HK$56,524 spread on the same certified stone. NZ Jewellers lists it at HK$100,911. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2427873957
Dimensions8.59 × 6.30 × 4.02 mm
L/W Ratio1.36
Top View
8.59 mm6.30 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2427873957
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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: Nov 1
Current: HK$65,904 HKD|Low: HK$42,288 HKD|High: HK$85,093 HKD|Avg: HK$60,063 HKD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8HK$44,388 HKD
Retailer 11HK$47,192 HKD
Retailer 2HK$50,448 HKD
Retailer 12HK$50,879 HKD
Retailer 4HK$54,661 HKD
Retailer 3HK$55,500 HKD
Retailer 5HK$56,883 HKD
Retailer 10HK$58,168 HKD
Retailer 1HK$65,904 HKD
Retailer 9HK$66,477 HKD
Retailer 7HK$74,128 HKD
Retailer 6HK$84,087 HKD

43 data points across 12 retailers

19 retailersHK$44,388 HKD to HK$100,911 HKD

B+
Cheapest Retailer
-
HK$44,388 HKD
B+
Retailer 2
-
HK$47,192 HKD
$6,015 USD
View
B+
Retailer 3
-
HK$50,448 HKD
$6,430 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$50,456 HKD
$6,431 USD
View
B+
Retailer 5
-
HK$50,872 HKD
$6,484 USD
View
B+
Retailer 6
-
HK$50,879 HKD
$6,485 USD
View
B
Retailer 7
-
HK$54,661 HKD
$6,967 USD
View
B
Retailer 8
-
HK$55,500 HKD
$7,074 USD
View
B
Retailer 9
-
HK$56,883 HKD
£5,709 GBP
View
Retailer 10
-
HK$58,168 HKD
A$11,406 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
HK$59,831 HKD
$7,626 USD
View
B
Retailer 12
-
HK$60,569 HKD
$7,720 USD
View
B
Retailer 13
-
HK$60,569 HKD
$7,720 USD
View
B
Retailer 14
-
HK$62,609 HKD
$7,980 USD
View
B
Retailer 15
-
HK$63,064 HKD
$8,038 USD
View
B
Retailer 16
-
HK$65,904 HKD
€8,000 EUR
View
B
Retailer 17
-
HK$74,128 HKD
ZAR 152,636 ZAR
View
B
Retailer 18
-
HK$84,087 HKD
£8,439 GBP
View
Most Expensive
C
NZ Jewellers
291f68da-725f-4ac0-8c62-3671c641db6a · Oct 30
HK$100,911 HKD
$12,862 USD
View
18 more retailers have this diamond
Prices start from HK$44,388 HKDSave up to HK$56,524 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.

B+
1.51ct Oval
HK$44,388 HKD