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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 $3,570 NZD
As of November 6, 2026
Save $4,031 NZD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,601 NZD 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 23 retailers as of November 6, 2026, with prices from $3,570 to $7,601, a $4,031 spread on the same certified stone. MOH London lists it at $7,601. 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: $7,601 NZD|Low: $3,301 NZD|High: $7,989 NZD|Avg: $4,819 NZD|-4.6%
MOH London
Retailer 2
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Retailer 4
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Retailer 25
November 7, 2026
Retailer 14$3,301 NZD
Retailer 10$3,404 NZD
Retailer 24$3,570 NZD
Retailer 22$3,647 NZD
Retailer 23$3,696 NZD
Retailer 21$3,978 NZD
Retailer 17$4,098 NZD
Retailer 13$4,259 NZD
Retailer 11$4,268 NZD
Retailer 12$4,293 NZD
Retailer 2$4,326 NZD
Retailer 25$4,347 NZD
Retailer 4$4,564 NZD
Retailer 7$4,564 NZD
Retailer 20$4,614 NZD
Retailer 16$4,645 NZD
Retailer 5$4,726 NZD
Retailer 19$4,748 NZD
Retailer 15$4,889 NZD
Retailer 18$5,044 NZD
Retailer 9$5,157 NZD
Retailer 3$5,329 NZD
Retailer 6$5,417 NZD
Retailer 8$5,480 NZD
MOH London$7,601 NZD

21 data points across 25 retailers

23 retailers$3,570 NZD to $7,601 NZD

Retailer 1
-
$3,301 NZD
Price last confirmed 18 days ago
Retailer 2
-
$3,404 NZD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$3,570 NZD
View
A
Retailer 4
-
$3,647 NZD
View
Final sale: no returns
A
Retailer 5
-
$3,696 NZD
View
A
Retailer 6
-
$3,978 NZD
View
Retailer 7
-
$4,098 NZD
View
Price last confirmed 23 days ago
A
Retailer 8
-
$4,259 NZD
View
A
Retailer 9
-
$4,326 NZD
View
A
Retailer 10
-
$4,347 NZD
View
A
Retailer 11
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$4,535 NZD
View
A
Retailer 12
-
$4,564 NZD
View
A
Retailer 13
-
$4,564 NZD
View
A
Retailer 14
-
$4,614 NZD
View
Retailer 15
-
$4,645 NZD
View
Price last confirmed 17 days ago
A
Retailer 16
-
$4,726 NZD
View
Retailer 17
-
$4,748 NZD
View
Retailer 18
-
$4,889 NZD
View
Price last confirmed 17 days ago
Retailer 19
-
$5,044 NZD
View
Price last confirmed 37 days ago
A
Retailer 20
-
$5,329 NZD
View
A
Retailer 21
-
$5,417 NZD
View
A
Retailer 22
-
$5,480 NZD
View
Most Expensive
B+
MOH London
0FE1DCF9E · Nov 7
$7,601 NZD
£3,318 GBP
View
22 more retailers have this diamond
Prices start from $3,570 NZDSave up to $4,031 NZD

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
$3,570 NZD