CaratHunter
Plans
Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6372934021

Certificate GIA 6372934021

Diamond specifications and retailer prices

From HK$16,835 HKD
As of November 6, 2026
Save HK$9,374 HKD (36%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$26,208 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6372934021. Listed at 18 retailers as of November 6, 2026, with prices from HK$16,835 to HK$26,208, a HK$9,374 spread on the same certified stone. Washington Diamond lists it at HK$26,208. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6372934021
Dimensions5.62 × 5.39 × 3.71 mm
L/W Ratio1.04
Top View
5.62 mm5.39 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6372934021
Side View
Table 64.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 68.9%

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 6
Current: HK$24,625 HKD|Low: HK$16,364 HKD|High: HK$26,208 HKD|Avg: HK$19,313 HKD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Washington Diamond
November 6, 2026
Retailer 8HK$16,364 HKD
Retailer 4HK$16,835 HKD
Retailer 7HK$17,893 HKD
Retailer 2HK$17,932 HKD
Retailer 6HK$19,719 HKD
Retailer 5HK$20,463 HKD
Retailer 3HK$20,714 HKD
Retailer 1HK$24,625 HKD
Washington DiamondHK$26,208 HKD

43 data points across 9 retailers

18 retailersHK$16,835 HKD to HK$26,208 HKD

B+
Cheapest Retailer
-
HK$16,835 HKD
B+
Retailer 2
-
HK$17,070 HKD
View
B+
Retailer 3
-
HK$17,148 HKD
View
B+
Retailer 4
-
HK$17,673 HKD
View
B+
Retailer 5
-
HK$17,893 HKD
View
B+
Retailer 6
-
HK$17,932 HKD
View
B+
Retailer 7
-
HK$18,245 HKD
View
B+
Retailer 8
-
HK$18,653 HKD
View
B
Retailer 9
-
HK$19,719 HKD
View
B
Retailer 10
-
HK$20,463 HKD
View
B+
Retailer 11
-
HK$20,691 HKD
View
B+
Retailer 12
-
HK$20,714 HKD
View
B
Retailer 13
-
HK$20,847 HKD
View
B
Retailer 14
-
HK$20,847 HKD
View
B
Retailer 15
-
HK$20,855 HKD
View
B
Retailer 16
-
HK$21,474 HKD
View
B
Retailer 17
-
HK$24,625 HKD
View
Most Expensive
Washington Diamond
1917992655 · Nov 6
HK$26,208 HKD
$3,344 USD
View
17 more retailers have this diamond
Prices start from HK$16,835 HKDSave up to HK$9,374 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$16,835 HKD