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Round|Natural|GIA

5.15ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7531243741

Certificate GIA 7531243741

Diamond specifications and retailer prices

From HK$460,184 HKD
As of November 4, 2026
Save HK$290,076 HKD (39%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$971,628 HKD at Aurelinne · As of September 19, 2026
View at Aurelinne

About this 5.15ct natural round diamond

This 5.15ct natural round sits in the over five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7531243741. Listed at 17 retailers as of November 4, 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

5.15
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7531243741
Dimensions11.18 × 11.12 × 6.77 mm
L/W Ratio1.01
Star length45%
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
11.18 mm11.12 mm5.15 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7531243741
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.7%

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 4
Current: HK$478,824 HKD|Low: HK$460,184 HKD|High: HK$863,670 HKD|Avg: HK$574,425 HKD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8HK$460,184 HKD
Retailer 12HK$462,773 HKD
Retailer 1HK$478,824 HKD
Retailer 13HK$483,664 HKD
Retailer 4HK$505,898 HKD
Retailer 9HK$511,319 HKD
Retailer 10HK$511,319 HKD
Retailer 3HK$518,834 HKD
Retailer 11HK$540,809 HKD
Retailer 2HK$558,155 HKD
Retailer 6HK$579,894 HKD
Retailer 7HK$750,260 HKD
Retailer 5HK$798,171 HKD

32 data points across 13 retailers

17 retailersHK$460,184 HKD to HK$750,260 HKD

A
Cheapest Retailer
-
HK$460,184 HKD
A
Retailer 2
-
HK$462,773 HKD
View
A
Retailer 3
-
HK$478,824 HKD
View
Retailer 4
-
HK$489,627 HKD
View
Price last confirmed 40 days ago
B+
Retailer 5
-
HK$501,755 HKD
View
B+
Retailer 6
-
HK$511,319 HKD
View
B+
Retailer 7
-
HK$511,319 HKD
View
Retailer 8
-
HK$540,456 HKD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
HK$540,809 HKD
View
Retailer 10
-
HK$558,155 HKD
View
Price last confirmed 36 days ago
Retailer 11
-
HK$562,077 HKD
View
Price last confirmed 36 days ago
B+
Retailer 12
-
HK$579,894 HKD
View
Retailer 13
-
HK$583,691 HKD
View
Price last confirmed 38 days ago
B
Retailer 14
-
HK$750,260 HKD
View
Retailer 15
-
HK$815,046 HKD
View
Price last confirmed 50 days ago
Retailer 16
-
HK$935,642 HKD
View
Price last confirmed 53 days ago
Most Expensive
Aurelinne
ca0647ac-7375-4d61-b4d2-c7d77e0a9b7a · Sep 19
HK$971,628 HKD
$123,850 USD
View
Price last confirmed 48 days ago
16 more retailers have this diamond
Prices start from HK$460,184 HKDSave up to HK$290,076 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
5.15ct Round
HK$460,184 HKD