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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6535460829

Certificate GIA 6535460829

Diamond specifications and retailer prices

From HK$18,653 HKD
As of November 4, 2026
Save HK$58,684 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$77,337 HKD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6535460829. Listed at 16 retailers as of November 4, 2026, with prices from HK$18,653 to HK$77,337, a HK$58,684 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$77,337. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6535460829
Dimensions7.38 × 7.33 × 4.55 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.38 mm7.33 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535460829
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.8%

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$54,721 HKD|Low: HK$18,653 HKD|High: HK$77,337 HKD|Avg: HK$38,936 HKD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Wholesale Diamonds Direct
November 6, 2026
Retailer 15HK$18,653 HKD
Retailer 7HK$20,918 HKD
Retailer 13HK$21,686 HKD
Retailer 14HK$22,525 HKD
Retailer 6HK$22,548 HKD
Retailer 8HK$24,523 HKD
Retailer 16HK$25,025 HKD
Retailer 9HK$39,563 HKD
Retailer 17HK$44,995 HKD
Retailer 10HK$45,143 HKD
Retailer 12HK$45,347 HKD
Retailer 18HK$50,340 HKD
Retailer 2HK$50,974 HKD
Retailer 3HK$53,843 HKD
Retailer 4HK$53,843 HKD
Retailer 11HK$54,572 HKD
Retailer 1HK$54,721 HKD
Retailer 5HK$55,646 HKD
Wholesale Diamonds DirectHK$77,337 HKD

28 data points across 19 retailers

16 retailersHK$18,653 HKD to HK$77,337 HKD

A
Cheapest Retailer
-
HK$18,653 HKD
A
Retailer 2
-
HK$20,918 HKD
View
A
Retailer 3
-
HK$21,686 HKD
View
A
Retailer 4
-
HK$22,525 HKD
View
Retailer 5
-
HK$22,548 HKD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$25,025 HKD
View
B+
Retailer 7
-
HK$44,995 HKD
View
B+
Retailer 8
-
HK$45,347 HKD
View
B+
Retailer 9
-
HK$50,340 HKD
View
B+
Retailer 10
-
HK$50,974 HKD
View
B
Retailer 11
-
HK$53,843 HKD
View
B
Retailer 12
-
HK$53,843 HKD
View
B+
Retailer 13
-
HK$54,572 HKD
View
B+
Retailer 14
-
HK$54,721 HKD
View
B
Retailer 15
-
HK$55,646 HKD
View
Most Expensive
B
Wholesale Diamonds Direct
623164163 · Nov 6
HK$77,337 HKD
$9,868 USD
View
15 more retailers have this diamond
Prices start from HK$18,653 HKDSave up to HK$58,684 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$18,653 HKD