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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 1379930764

Certificate GIA 1379930764

Diamond specifications and retailer prices

From HK$19,061 HKD
As of November 4, 2026
Save HK$10,424 HKD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$29,484 HKD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1379930764. Listed at 17 retailers as of November 4, 2026, with prices from HK$19,061 to HK$29,484, a HK$10,424 spread on the same certified stone. Washington Diamond lists it at HK$29,484. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379930764
Dimensions6.06 × 5.18 × 3.71 mm
L/W Ratio1.17
Key to symbols
Cloud, Feather, Crystal, Indented Natural
Top View
6.06 mm5.18 mm1.00 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379930764
Side View
Table 68.0%CrownGirdle: - VPavilionCulet: NoneDepth 71.7%

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$27,407 HKD|Low: HK$18,661 HKD|High: HK$29,484 HKD|Avg: HK$22,144 HKD|+2.9%
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
Washington Diamond
November 6, 2026
Retailer 10HK$18,849 HKD
Retailer 14HK$19,061 HKD
Retailer 15HK$19,594 HKD
Retailer 11HK$19,664 HKD
Retailer 8HK$19,915 HKD
Retailer 7HK$20,369 HKD
Retailer 9HK$21,286 HKD
Retailer 16HK$21,670 HKD
Retailer 3HK$21,710 HKD
Retailer 4HK$23,112 HKD
Retailer 13HK$23,199 HKD
Retailer 12HK$23,881 HKD
Retailer 6HK$24,453 HKD
Retailer 5HK$24,570 HKD
Retailer 2HK$25,236 HKD
Retailer 1HK$27,407 HKD
Washington DiamondHK$29,484 HKD

25 data points across 17 retailers

17 retailersHK$19,061 HKD to HK$29,484 HKD

Retailer 1
-
HK$18,849 HKD
Price last confirmed 17 days ago
B+
Retailer 2
-
HK$19,061 HKD
View
B+
Retailer 3
-
HK$19,664 HKD
View
B
Retailer 4
-
HK$19,915 HKD
View
B
Retailer 5
-
HK$20,369 HKD
View
B
Retailer 6
-
HK$21,286 HKD
View
B
Retailer 7
-
HK$21,670 HKD
View
B
Retailer 8
-
HK$21,710 HKD
View
B
Retailer 9
-
HK$23,112 HKD
View
B
Retailer 10
-
HK$23,199 HKD
View
B
Retailer 11
-
HK$23,881 HKD
View
B
Retailer 12
-
HK$24,453 HKD
View
B
Retailer 13
-
HK$24,453 HKD
View
B
Retailer 14
-
HK$24,570 HKD
View
B
Retailer 15
-
HK$25,236 HKD
View
B
Retailer 16
-
HK$27,407 HKD
View
Most Expensive
Washington Diamond
1917992628 · Nov 6
HK$29,484 HKD
$3,762 USD
View
16 more retailers have this diamond
Prices start from HK$19,061 HKDSave up to HK$10,424 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+
1.00ct Cushion
HK$19,061 HKD