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Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1226075838

Certificate GIA 1226075838

Diamond specifications and retailer prices

From $4,490 NZD
As of November 4, 2026
Save $5,274 NZD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,764 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1226075838. Listed at 19 retailers as of November 4, 2026, with prices from $4,490 to $9,764, a $5,274 spread on the same certified stone. MOH London lists it at $9,764. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1226075838
Dimensions5.93 × 5.72 × 3.84 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.93 mm5.72 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1226075838
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.1%

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: $9,764 NZD|Low: $4,587 NZD|High: $9,908 NZD|Avg: $5,980 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$4,587 NZD
Retailer 5$4,618 NZD
Retailer 9$4,981 NZD
Retailer 6$5,303 NZD
Retailer 7$5,726 NZD
Retailer 4$6,020 NZD
Retailer 3$6,424 NZD
Retailer 2$6,909 NZD
MOH London$9,764 NZD

43 data points across 9 retailers

19 retailers$4,490 NZD to $9,764 NZD

B+
Cheapest Retailer
-
$4,490 NZD
B
Retailer 2
-
$4,587 NZD
View
B+
Retailer 3
-
$4,618 NZD
View
B
Retailer 4
-
$4,690 NZD
View
B
Retailer 5
-
$4,748 NZD
View
B+
Retailer 6
-
$4,899 NZD
View
B
Retailer 7
-
$4,981 NZD
View
Retailer 8
-
$5,303 NZD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$5,415 NZD
View
B
Retailer 10
-
$5,726 NZD
View
B
Retailer 11
-
$5,758 NZD
View
B
Retailer 12
-
$6,020 NZD
View
B
Retailer 13
-
$6,043 NZD
View
B
Retailer 14
-
$6,043 NZD
View
B
Retailer 15
-
$6,241 NZD
View
B
Retailer 16
-
$6,424 NZD
View
Retailer 17
-
$6,792 NZD
View
Price last confirmed 15 days ago
Retailer 18
-
$6,909 NZD
View
Most Expensive
B
MOH London
8A63291A6 · Nov 4
$9,764 NZD
£4,262 GBP
View
18 more retailers have this diamond
Prices start from $4,490 NZDSave up to $5,274 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.

B+
1.00ct Cushion
$4,490 NZD