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Round|Natural|GIA

1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6561157320

Certificate GIA 6561157320

Diamond specifications and retailer prices

From HK$24,563 HKD
As of November 6, 2026
Save HK$8,700 HKD (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$33,264 HKD at Blue Nile · As of November 3, 2026
View at Blue Nile

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561157320. Listed at 6 retailers as of November 3, 2026, with prices from HK$24,563 to HK$33,264, a HK$8,700 spread on the same certified stone. Blue Nile lists it at HK$33,264. 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

1.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6561157320
Dimensions7.30 × 7.34 × 4.59 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
7.30 mm7.34 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561157320
Side View
Table 56.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.7%

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 6
Current: HK$33,264 HKD|Low: HK$24,195 HKD|High: HK$33,687 HKD|Avg: HK$29,076 HKD|-1.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2HK$24,563 HKD
Retailer 3HK$26,831 HKD
Retailer 6HK$28,588 HKD
Retailer 5HK$30,769 HKD
Retailer 7HK$32,534 HKD
Retailer 4HK$32,887 HKD
Blue NileHK$33,264 HKD

45 data points across 7 retailers

6 retailersHK$24,563 HKD to HK$33,264 HKD

A
Cheapest Retailer
-
HK$24,563 HKD
A
Retailer 2
-
HK$26,831 HKD
View
B+
Retailer 3
-
HK$30,769 HKD
View
B+
Retailer 4
-
HK$32,534 HKD
View
B+
Retailer 5
-
HK$32,887 HKD
View
Most Expensive
B+
Blue Nile
30420830 · Nov 3
HK$33,264 HKD
$4,240 USD
View
5 more retailers have this diamond
Prices start from HK$24,563 HKDSave up to HK$8,700 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
1.53ct Round
HK$24,563 HKD