Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 1545696258

Certificate GIA 1545696258

Diamond specifications and retailer prices

From HK$45,726 HKD
₹555,060 INR
As of November 2, 2026
Save HK$12,481 HKD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$58,207 HKD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 1545696258. Listed at 8 retailers as of October 29, 2026, with prices from HK$45,726 to HK$58,207, a HK$12,481 spread on the same certified stone. Blue Nile lists it at HK$58,207. 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
OriginNatural
Grading LabGIA
CertificateGIA 1545696258
Dimensions8.55 × 6.50 × 4.22 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Natural
Top View
8.55 mm6.50 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545696258
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.8%

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 2
Current: HK$58,207 HKD|Low: HK$44,846 HKD|High: HK$61,079 HKD|Avg: HK$51,866 HKD|-4.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2HK$45,726 HKD
Retailer 4HK$47,834 HKD
Retailer 5HK$49,867 HKD
Retailer 6HK$51,468 HKD
Retailer 3HK$52,191 HKD
Retailer 7HK$52,522 HKD
Blue NileHK$58,207 HKD

46 data points across 7 retailers

8 retailersHK$45,726 HKD to HK$58,207 HKD

A
Cheapest Retailer
-
HK$45,726 HKD
₹555,060 INR
A
Retailer 2
-
HK$47,834 HKD
SGD 8,239 SGD
View
A
Retailer 3
-
HK$49,867 HKD
$6,356 USD
View
B+
Retailer 4
-
HK$51,468 HKD
$6,560 USD
View
Final sale: no returns
A
Retailer 5
-
HK$52,191 HKD
£5,238 GBP
View
B+
Retailer 6
-
HK$52,522 HKD
MYR 27,268 MYR
View
B+
Retailer 7
-
HK$57,667 HKD
A$11,308 AUD
View
Most Expensive
B+
Blue Nile
28840668 · Oct 29
HK$58,207 HKD
$7,419 USD
View
7 more retailers have this diamond
Prices start from HK$45,726 HKDSave up to HK$12,481 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$45,726 HKD