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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6511419240

Certificate GIA 6511419240

Diamond specifications and retailer prices

From HK$8,473 HKD
As of November 4, 2026
Save HK$10,999 HKD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$26,007 HKD at NZ Jewellers · As of November 4, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511419240. Listed at 22 retailers as of November 4, 2026, with a 130% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6511419240
Dimensions5.36 × 5.32 × 3.19 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.36 mm5.32 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6511419240
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$11,697 HKD|Low: HK$7,429 HKD|High: HK$19,762 HKD|Avg: HK$12,873 HKD|+3.5%
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 8HK$8,473 HKD
Retailer 10HK$8,920 HKD
Retailer 3HK$9,257 HKD
Retailer 12HK$10,034 HKD
Retailer 9HK$10,591 HKD
Retailer 1HK$11,697 HKD
Retailer 4HK$12,082 HKD
Retailer 5HK$13,760 HKD
Retailer 11HK$13,910 HKD
Retailer 6HK$16,451 HKD
Retailer 2HK$17,393 HKD
Retailer 7HK$19,472 HKD

45 data points across 12 retailers

22 retailersHK$8,473 HKD to HK$19,472 HKD

B+
Cheapest Retailer
-
HK$8,473 HKD
B+
Retailer 2
-
HK$8,920 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$9,218 HKD
View
B+
Retailer 4
-
HK$9,257 HKD
View
B+
Retailer 5
-
HK$9,657 HKD
View
Retailer 6
-
HK$9,657 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$10,034 HKD
View
B
Retailer 8
-
HK$10,591 HKD
View
B
Retailer 9
-
HK$11,148 HKD
View
B
Retailer 10
-
HK$11,532 HKD
View
B
Retailer 11
-
HK$11,532 HKD
View
B
Retailer 12
-
HK$11,697 HKD
View
B
Retailer 13
-
HK$11,925 HKD
View
B
Retailer 14
-
HK$12,082 HKD
View
B
Retailer 15
-
HK$13,407 HKD
View
B
Retailer 16
-
HK$13,760 HKD
View
Retailer 17
-
HK$13,910 HKD
View
Price last confirmed 32 days ago
B
Retailer 18
-
HK$16,451 HKD
View
B
Retailer 19
-
HK$17,393 HKD
View
B
Retailer 20
-
HK$18,703 HKD
View
B
Retailer 21
-
HK$19,472 HKD
View
Most Expensive
NZ Jewellers
fc518b71-e872-449c-a74e-39cfca248c75 · Nov 4
HK$26,007 HKD
$3,315 USD
View
Price under review
21 more retailers have this diamond
Prices start from HK$8,473 HKDSave up to HK$10,999 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+
0.55ct Round
HK$8,473 HKD