Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 7516255976

Certificate GIA 7516255976

Diamond specifications and retailer prices

From HK$58,391 HKD
$7,442 USD
As of November 2, 2026
Save HK$36,920 HKD (39%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$114,380 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 7516255976. Listed at 16 retailers as of November 1, 2026, with a 63% 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
FluorescenceNone
Crown angle36.55°
Pavilion angle39.32°
OriginNatural
Grading LabGIA
CertificateGIA 7516255976
Dimensions8.87 × 6.32 × 4.07 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural, Natural
Top View
8.87 mm6.32 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7516255976
Side View
Table 57.0%Crown 36.55°Girdle: STK-VTKPavilion 39.32°Culet: NoneDepth 64.4%

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: Nov 2
Current: HK$63,984 HKD|Low: HK$57,865 HKD|High: HK$96,457 HKD|Avg: HK$68,125 HKD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9HK$58,391 HKD
Retailer 2HK$59,113 HKD
Retailer 10HK$62,847 HKD
Retailer 8HK$63,122 HKD
Retailer 4HK$63,204 HKD
Retailer 1HK$63,984 HKD
Retailer 7HK$64,760 HKD
Retailer 3HK$74,706 HKD
Retailer 6HK$84,017 HKD
Retailer 5HK$95,311 HKD

35 data points across 10 retailers

16 retailersHK$58,391 HKD to HK$95,311 HKD

B+
Cheapest Retailer
-
HK$58,391 HKD
$7,442 USD
B+
Retailer 2
-
HK$59,113 HKD
$7,534 USD
View
B+
Retailer 3
-
HK$62,847 HKD
$8,010 USD
View
B+
Retailer 4
-
HK$63,122 HKD
$8,045 USD
View
Final sale: no returns
Retailer 5
-
HK$63,130 HKD
$8,046 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
HK$63,204 HKD
£6,343 GBP
View
B+
Retailer 7
-
HK$63,984 HKD
£6,421 GBP
View
Retailer 8
-
HK$64,760 HKD
A$12,698 AUD
View
Price last confirmed 11 days ago
Retailer 9
-
HK$68,387 HKD
$8,716 USD
View
Price last confirmed 25 days ago
B
Retailer 10
-
HK$68,594 HKD
$8,742 USD
View
Retailer 11
-
HK$69,438 HKD
$8,850 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
HK$74,706 HKD
€9,068 EUR
View
Retailer 13
-
HK$78,908 HKD
$10,057 USD
View
Price last confirmed 24 days ago
B
Retailer 14
-
HK$84,017 HKD
ZAR 172,991 ZAR
View
B
Retailer 15
-
HK$95,311 HKD
£9,565 GBP
View
Most Expensive
NZ Jewellers
7d235d39-6a53-4af6-a403-d2c7af3c6082 · Sep 30
HK$114,380 HKD
$14,578 USD
View
Price last confirmed 33 days ago
15 more retailers have this diamond
Prices start from HK$58,391 HKDSave up to HK$36,920 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$58,391 HKD