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1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6491766711

Shape and cutting style on the report: Round brilliant

Certificate GIA 6491766711

Diamond specifications and retailer prices

From HK$35,955 HKD
As of November 4, 2026
Save HK$40,160 HKD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$76,114 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6491766711. Listed at 15 retailers as of November 4, 2026, with prices from HK$35,955 to HK$76,114, a HK$40,160 spread on the same certified stone. NZ Jewellers lists it at HK$76,114. 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

1.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6491766711
Dimensions7.34 × 7.31 × 4.56 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.34 mm7.31 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6491766711
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$49,464 HKD|Low: HK$35,955 HKD|High: HK$67,853 HKD|Avg: HK$46,232 HKD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 9HK$35,955 HKD
Retailer 5HK$36,394 HKD
Retailer 7HK$36,402 HKD
Retailer 8HK$38,379 HKD
Retailer 2HK$41,234 HKD
Retailer 3HK$43,666 HKD
Retailer 1HK$49,464 HKD
Retailer 6HK$49,558 HKD
Retailer 10HK$61,130 HKD
Retailer 4HK$66,872 HKD

43 data points across 10 retailers

15 retailersHK$35,955 HKD to HK$76,114 HKD

B+
Cheapest Retailer
-
HK$35,955 HKD
B+
Retailer 2
-
HK$36,394 HKD
View
B+
Retailer 3
-
HK$36,402 HKD
View
B+
Retailer 4
-
HK$38,379 HKD
View
B
Retailer 5
-
HK$40,795 HKD
View
Retailer 6
-
HK$41,234 HKD
View
Price last confirmed 8 days ago
B
Retailer 7
-
HK$41,234 HKD
View
B
Retailer 8
-
HK$41,234 HKD
View
B+
Retailer 9
-
HK$43,666 HKD
View
B
Retailer 10
-
HK$47,573 HKD
View
B
Retailer 11
-
HK$49,464 HKD
View
B
Retailer 12
-
HK$49,558 HKD
View
Retailer 13
-
HK$50,201 HKD
View
Price last confirmed 14 days ago
B
Retailer 14
-
HK$66,872 HKD
View
Most Expensive
B
NZ Jewellers
2ebd30b8-ea8c-4b5d-85d4-042f8b38b488 · Nov 5
HK$76,114 HKD
$9,702 USD
View
14 more retailers have this diamond
Prices start from HK$35,955 HKDSave up to HK$40,160 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+
1.51ct Round
HK$35,955 HKD