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Oval|Natural|GIA

1.40ct K SI1 Oval Natural Diamond

ID • K/SI1 • GIA 5553967650

Certificate GIA 5553967650

Diamond specifications and retailer prices

From HK$16,576 HKD
As of November 6, 2026
Save HK$21,365 HKD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$47,479 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.4ct natural oval diamond

This 1.4ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553967650. Listed at 16 retailers as of November 4, 2026, with a 129% 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

1.40
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553967650
Dimensions8.87 × 6.31 × 3.67 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Knot, Indented Natural, Needle, Natural
Top View
8.87 mm6.31 mm1.40 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553967650
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 58.1%

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 6
Current: HK$16,576 HKD|Low: HK$16,576 HKD|High: HK$39,156 HKD|Avg: HK$23,510 HKD|-4.6%
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 6, 2026
Retailer 1HK$16,576 HKD
Retailer 4HK$19,045 HKD
Retailer 10HK$19,398 HKD
Retailer 11HK$20,009 HKD
Retailer 3HK$20,040 HKD
Retailer 5HK$21,059 HKD
Retailer 2HK$21,318 HKD
Retailer 12HK$22,823 HKD
Retailer 7HK$22,979 HKD
Retailer 6HK$25,268 HKD
Retailer 8HK$26,498 HKD
Retailer 9HK$37,941 HKD

23 data points across 12 retailers

16 retailersHK$16,576 HKD to HK$37,941 HKD

A
Cheapest Retailer
-
HK$16,576 HKD
A
Retailer 2
-
HK$19,045 HKD
View
A
Retailer 3
-
HK$19,398 HKD
View
A
Retailer 4
-
HK$20,009 HKD
View
B+
Retailer 5
-
HK$20,040 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$21,059 HKD
View
A
Retailer 7
-
HK$21,318 HKD
View
Retailer 8
-
HK$22,109 HKD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
HK$22,823 HKD
View
B+
Retailer 10
-
HK$22,979 HKD
View
Retailer 11
-
HK$23,583 HKD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
HK$25,268 HKD
View
Retailer 13
-
HK$25,511 HKD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
HK$26,498 HKD
View
B
Retailer 15
-
HK$37,941 HKD
View
Most Expensive
NZ Jewellers
d546049e-de6e-41fb-9a1f-20a641474722 · Sep 30
HK$47,479 HKD
$6,058 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from HK$16,576 HKDSave up to HK$21,365 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
1.40ct Oval
HK$16,576 HKD