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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1558712621

Certificate GIA 1558712621

Diamond specifications and retailer prices

From HK$15,510 HKD
As of November 6, 2026
Save HK$17,515 HKD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$33,026 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558712621. Listed at 22 retailers as of November 6, 2026, with prices from HK$15,510 to HK$33,026, a HK$17,515 spread on the same certified stone. MOH London lists it at HK$33,026. 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

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 1558712621
Dimensions6.25 × 6.10 × 4.15 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.25 mm6.10 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558712621
Side View
Table 64.0%Crown 37°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$33,026 HKD|Low: HK$14,092 HKD|High: HK$34,708 HKD|Avg: HK$20,868 HKD|-4.6%
MOH London
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
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 7, 2026
Retailer 12HK$14,342 HKD
Retailer 9HK$14,789 HKD
Retailer 20HK$15,510 HKD
Retailer 18HK$15,847 HKD
Retailer 19HK$16,059 HKD
Retailer 13HK$17,281 HKD
Retailer 16HK$17,807 HKD
Retailer 3HK$18,379 HKD
Retailer 10HK$18,543 HKD
Retailer 11HK$18,653 HKD
Retailer 21HK$18,888 HKD
Retailer 7HK$19,311 HKD
Retailer 5HK$19,829 HKD
Retailer 23HK$19,829 HKD
Retailer 2HK$20,048 HKD
Retailer 15HK$20,181 HKD
Retailer 24HK$20,534 HKD
Retailer 14HK$21,239 HKD
Retailer 17HK$21,913 HKD
Retailer 8HK$22,407 HKD
Retailer 22HK$23,152 HKD
Retailer 4HK$23,536 HKD
Retailer 6HK$23,810 HKD
MOH LondonHK$33,026 HKD

22 data points across 24 retailers

22 retailersHK$15,510 HKD to HK$33,026 HKD

Retailer 1
-
HK$14,342 HKD
Price last confirmed 18 days ago
Retailer 2
-
HK$14,789 HKD
View
Price last confirmed 18 days ago
A
Retailer 3
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HK$15,510 HKD
View
A
Retailer 4
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HK$15,847 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$16,059 HKD
View
A
Retailer 6
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HK$17,281 HKD
View
Retailer 7
-
HK$17,807 HKD
View
Price last confirmed 23 days ago
A
Retailer 8
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HK$18,379 HKD
View
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Retailer 9
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HK$18,888 HKD
View
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Retailer 10
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HK$19,311 HKD
View
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Retailer 11
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HK$19,703 HKD
View
A
Retailer 12
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HK$19,829 HKD
View
A
Retailer 13
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HK$19,829 HKD
View
A
Retailer 14
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HK$20,048 HKD
View
Retailer 15
-
HK$20,181 HKD
View
Price last confirmed 17 days ago
A
Retailer 16
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HK$20,534 HKD
View
Retailer 17
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HK$21,239 HKD
View
Price last confirmed 17 days ago
Retailer 18
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HK$21,913 HKD
View
Price last confirmed 37 days ago
A
Retailer 19
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HK$23,152 HKD
View
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Retailer 20
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HK$23,536 HKD
View
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Retailer 21
-
HK$23,810 HKD
View
Most Expensive
B+
MOH London
0FE1DCF9E · Nov 7
HK$33,026 HKD
£3,318 GBP
View
21 more retailers have this diamond
Prices start from HK$15,510 HKDSave up to HK$17,515 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
1.30ct Cushion
HK$15,510 HKD