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Round|Natural|GIA

2.55ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 16

Certificate GIA 16

Diamond specifications and retailer prices

From HK$90,079 HKD
As of November 4, 2026
Save HK$66,998 HKD (43%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$157,077 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 2.55ct natural round diamond

This 2.55ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 11 retailers as of November 4, 2026, with prices from HK$90,079 to HK$157,077, a HK$66,998 spread on the same certified stone. NZ Jewellers lists it at HK$157,077. 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

2.55
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 16
Dimensions8.94 × 8.98 × 5.27 mm
L/W Ratio1.00
Top View
8.94 mm8.98 mm2.55 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 16
Side View
Table 59.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 58.9%

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$157,077 HKD|Low: HK$90,079 HKD|High: HK$157,077 HKD|Avg: HK$109,381 HKD|+11.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3HK$90,079 HKD
Retailer 5HK$94,244 HKD
Retailer 4HK$100,528 HKD
Retailer 6HK$102,105 HKD
Retailer 7HK$103,933 HKD
Retailer 2HK$116,658 HKD
NZ JewellersHK$157,077 HKD

11 data points across 7 retailers

11 retailersHK$90,079 HKD to HK$157,077 HKD

A
Cheapest Retailer
-
HK$90,079 HKD
Retailer 2
-
HK$94,244 HKD
View
Price last confirmed 8 days ago
Retailer 3
-
HK$94,244 HKD
View
Price last confirmed 29 days ago
A
Retailer 4
-
HK$100,528 HKD
View
A
Retailer 5
-
HK$102,105 HKD
View
Retailer 6
-
HK$102,105 HKD
View
Price last confirmed 30 days ago
A
Retailer 7
-
HK$103,933 HKD
View
Retailer 8
-
HK$106,028 HKD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
HK$116,658 HKD
View
Retailer 10
-
HK$141,488 HKD
View
Price last confirmed 31 days ago
Most Expensive
B
NZ Jewellers
7476029c-3922-4cf1-8c9b-6bb374f9ba40 · Nov 5
HK$157,077 HKD
$20,022 USD
View
10 more retailers have this diamond
Prices start from HK$90,079 HKDSave up to HK$66,998 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
2.55ct Round
HK$90,079 HKD