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Round|Natural|GIA

0.55ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6551409149

Certificate GIA 6551409149

Diamond specifications and retailer prices

From HK$4,757 HKD
As of November 6, 2026
Save HK$6,458 HKD (58%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: HK$19,304 HKD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551409149. Listed at 31 retailers as of November 6, 2026, with a 136% 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

0.55
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551409149
Dimensions5.21 × 5.24 × 3.27 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal
Top View
5.21 mm5.24 mm0.55 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551409149
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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$7,406 HKD|Low: HK$4,757 HKD|High: HK$11,411 HKD|Avg: HK$7,948 HKD
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
Retailer 14
November 7, 2026
Retailer 4HK$4,757 HKD
Retailer 14HK$5,290 HKD
Retailer 6HK$5,862 HKD
Retailer 7HK$6,952 HKD
Retailer 3HK$6,975 HKD
Retailer 11HK$7,093 HKD
Retailer 13HK$7,289 HKD
Retailer 1HK$7,406 HKD
Retailer 8HK$7,939 HKD
Retailer 10HK$7,971 HKD
Retailer 9HK$8,558 HKD
Retailer 5HK$9,256 HKD
Retailer 2HK$9,499 HKD
Retailer 12HK$11,215 HKD

44 data points across 14 retailers

31 retailersHK$4,757 HKD to HK$11,215 HKD

A
Cheapest Retailer
-
HK$4,757 HKD
Final sale: no returns
A
Retailer 2
-
HK$5,118 HKD
View
A
Retailer 3
-
HK$5,290 HKD
View
Retailer 4
-
HK$5,478 HKD
View
Price last confirmed 27 days ago
Retailer 5
-
HK$5,580 HKD
View
Price last confirmed 68 days ago
A
Retailer 6
-
HK$5,580 HKD
View
B+
Retailer 7
-
HK$5,651 HKD
View
B+
Retailer 8
-
HK$5,737 HKD
View
B+
Retailer 9
-
HK$5,792 HKD
View
B+
Retailer 10
-
HK$5,862 HKD
View
B+
Retailer 11
-
HK$6,419 HKD
View
Retailer 12
-
HK$6,435 HKD
View
Price last confirmed 46 days ago
B+
Retailer 13
-
HK$6,866 HKD
View
B+
Retailer 14
-
HK$6,897 HKD
View
B+
Retailer 15
-
HK$6,897 HKD
View
B+
Retailer 16
-
HK$6,952 HKD
View
B+
Retailer 17
-
HK$6,975 HKD
View
B+
Retailer 18
-
HK$7,093 HKD
View
B+
Retailer 19
-
HK$7,132 HKD
View
B+
Retailer 20
-
HK$7,289 HKD
View
B+
Retailer 21
-
HK$7,406 HKD
View
B
Retailer 22
-
HK$7,532 HKD
View
B+
Retailer 23
-
HK$7,939 HKD
View
B+
Retailer 24
-
HK$7,971 HKD
View
B
Retailer 25
-
HK$8,558 HKD
View
B
Retailer 26
-
HK$8,629 HKD
View
Retailer 27
-
HK$9,256 HKD
View
Price last confirmed 34 days ago
B
Retailer 28
-
HK$9,499 HKD
View
B
Retailer 29
-
HK$9,883 HKD
View
B
Retailer 30
-
HK$11,215 HKD
View
Most Expensive
NZ Jewellers
9b4a09a1-bca8-48c8-abbe-fa20ccd6310f · Oct 17
HK$19,304 HKD
$2,463 USD
View
Price under review
30 more retailers have this diamond
Prices start from HK$4,757 HKDSave up to HK$6,458 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
0.55ct Round
HK$4,757 HKD