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Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

GD • J/SI1 • GIA 1437705735

Certificate GIA 1437705735

Diamond specifications and retailer prices

From HK$11,333 HKD
As of November 6, 2026
Save HK$21,757 HKD (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$33,090 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 1437705735. Listed at 21 retailers as of November 5, 2026, with prices from HK$11,333 to HK$33,090, a HK$21,757 spread on the same certified stone. NZ Jewellers lists it at HK$33,090. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1437705735
Dimensions6.23 × 6.16 × 4.07 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
6.23 mm6.16 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1437705735
Side View
Table 56.0%Crown 37.5°Girdle: ThickPavilion 41°Culet: NoneDepth 65.7%

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$11,333 HKD|Low: HK$11,333 HKD|High: HK$28,058 HKD|Avg: HK$17,424 HKD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1HK$11,333 HKD
Retailer 9HK$11,537 HKD
Retailer 2HK$14,609 HKD
Retailer 11HK$14,695 HKD
Retailer 8HK$15,087 HKD
Retailer 4HK$16,004 HKD
Retailer 6HK$17,086 HKD
Retailer 5HK$19,311 HKD
Retailer 7HK$19,343 HKD
Retailer 3HK$19,507 HKD
Retailer 10HK$27,878 HKD

38 data points across 11 retailers

21 retailersHK$11,333 HKD to HK$33,090 HKD

A
Cheapest Retailer
-
HK$11,333 HKD
B+
Retailer 2
-
HK$11,537 HKD
View
B+
Retailer 3
-
HK$13,998 HKD
View
B+
Retailer 4
-
HK$14,609 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$14,695 HKD
View
B+
Retailer 6
-
HK$15,087 HKD
View
B+
Retailer 7
-
HK$15,424 HKD
View
Retailer 8
-
HK$15,824 HKD
View
Price last confirmed 8 days ago
B
Retailer 9
-
HK$15,824 HKD
View
B
Retailer 10
-
HK$16,004 HKD
View
B
Retailer 11
-
HK$16,106 HKD
View
B
Retailer 12
-
HK$16,553 HKD
View
B
Retailer 13
-
HK$16,905 HKD
View
B
Retailer 14
-
HK$17,086 HKD
View
B
Retailer 15
-
HK$18,261 HKD
View
B
Retailer 16
-
HK$19,311 HKD
View
B
Retailer 17
-
HK$19,343 HKD
View
Retailer 18
-
HK$19,507 HKD
View
Price last confirmed 32 days ago
C
Retailer 19
-
HK$27,298 HKD
View
Retailer 20
-
HK$27,878 HKD
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
e0447a58-148d-4c6f-94b5-4afb52760dae · Nov 5
HK$33,090 HKD
$4,222 USD
View
20 more retailers have this diamond
Prices start from HK$11,333 HKDSave up to HK$21,757 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
1.00ct Round
HK$11,333 HKD