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Round|Natural|GIA

1.51ct K IF Round Natural Diamond

EX • K/IF • GIA 6555600975

Certificate GIA 6555600975

Diamond specifications and retailer prices

From HK$37,649 HKD
As of November 6, 2026
Save HK$13,957 HKD (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$51,606 HKD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6555600975. Listed at 8 retailers as of November 5, 2026, with prices from HK$37,649 to HK$51,606, a HK$13,957 spread on the same certified stone. Blue Nile lists it at HK$51,606. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555600975
Dimensions7.29 × 7.26 × 4.56 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.29 mm7.26 mm1.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555600975
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$51,606 HKD|Low: HK$37,649 HKD|High: HK$54,265 HKD|Avg: HK$44,936 HKD|-4.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2HK$37,649 HKD
Retailer 4HK$42,089 HKD
Retailer 5HK$43,941 HKD
Retailer 3HK$45,259 HKD
Retailer 6HK$45,377 HKD
Retailer 7HK$46,279 HKD
Blue NileHK$51,606 HKD

45 data points across 7 retailers

8 retailersHK$37,649 HKD to HK$51,606 HKD

A
Cheapest Retailer
-
HK$37,649 HKD
A
Retailer 2
-
HK$42,089 HKD
View
A
Retailer 3
-
HK$43,941 HKD
View
A
Retailer 4
-
HK$45,259 HKD
View
B+
Retailer 5
-
HK$45,377 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$46,279 HKD
View
B+
Retailer 7
-
HK$47,816 HKD
View
Most Expensive
B+
Blue Nile
29519225 · Nov 5
HK$51,606 HKD
$6,578 USD
View
7 more retailers have this diamond
Prices start from HK$37,649 HKDSave up to HK$13,957 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
1.51ct Round
HK$37,649 HKD