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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6512752915

Certificate GIA 6512752915

Diamond specifications and retailer prices

From HK$52,422 HKD
As of October 29, 2026
Save HK$65,460 HKD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$117,882 HKD at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512752915. Listed at 19 retailers as of October 29, 2026, with prices from HK$52,422 to HK$117,882, a HK$65,460 spread on the same certified stone. NZ Jewellers lists it at HK$117,882. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6512752915
Dimensions7.41 × 7.36 × 4.47 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.41 mm7.36 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512752915
Side View
Table 59.0%Crown 34°Girdle: ThickPavilion 40.6°Culet: NoneDepth 60.5%

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: Oct 29
Current: HK$117,882 HKD|Low: HK$52,422 HKD|High: HK$117,882 HKD|Avg: HK$68,012 HKD
NZ Jewellers
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
Retailer 19
October 30, 2026
Retailer 10HK$52,422 HKD
Retailer 7HK$52,605 HKD
Retailer 11HK$55,187 HKD
Retailer 4HK$58,804 HKD
Retailer 6HK$58,937 HKD
Retailer 15HK$58,945 HKD
Retailer 14HK$62,794 HKD
Retailer 5HK$63,856 HKD
Retailer 19HK$64,837 HKD
Retailer 2HK$65,268 HKD
Retailer 16HK$66,841 HKD
Retailer 9HK$70,355 HKD
Retailer 3HK$73,679 HKD
Retailer 8HK$74,848 HKD
Retailer 12HK$77,223 HKD
Retailer 17HK$77,610 HKD
Retailer 18HK$85,058 HKD
Retailer 13HK$98,754 HKD
NZ JewellersHK$117,882 HKD

40 data points across 19 retailers

19 retailersHK$52,422 HKD to HK$117,882 HKD

A
Cheapest Retailer
-
HK$52,422 HKD
A
Retailer 2
-
HK$52,605 HKD
$6,705 USD
View
A
Retailer 3
-
HK$55,187 HKD
$7,034 USD
View
A
Retailer 4
-
HK$58,804 HKD
$7,495 USD
View
A
Retailer 5
-
HK$58,937 HKD
$7,512 USD
View
Final sale: no returns
A
Retailer 6
-
HK$58,945 HKD
$7,513 USD
View
A
Retailer 7
-
HK$62,794 HKD
$8,004 USD
View
B+
Retailer 8
-
HK$63,856 HKD
$8,139 USD
View
B+
Retailer 9
-
HK$64,837 HKD
$8,264 USD
View
A
Retailer 10
-
HK$65,268 HKD
£6,550 GBP
View
B+
Retailer 11
-
HK$66,841 HKD
A$13,107 AUD
View
B+
Retailer 12
-
HK$70,355 HKD
$8,967 USD
View
B+
Retailer 13
-
HK$73,679 HKD
$9,391 USD
View
B+
Retailer 14
-
HK$74,848 HKD
$9,540 USD
View
B+
Retailer 15
-
HK$77,223 HKD
€9,374 EUR
View
Retailer 16
-
HK$77,610 HKD
$9,892 USD
View
Price last confirmed 7 days ago
Retailer 17
-
HK$85,058 HKD
ZAR 175,142 ZAR
View
Price last confirmed 8 days ago
B
Retailer 18
-
HK$98,754 HKD
£9,911 GBP
View
Most Expensive
B
NZ Jewellers
6ce93c74-746a-4bb5-80ce-0577f7010937 · Oct 30
HK$117,882 HKD
$15,025 USD
View
18 more retailers have this diamond
Prices start from HK$52,422 HKDSave up to HK$65,460 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$52,422 HKD