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Cushion|Natural|GIA

1.00ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6371885928

Certificate GIA 6371885928

Diamond specifications and retailer prices

From $4,550 NZD
$2,560 USD
As of October 31, 2026
Save $2,035 NZD (31%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,585 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-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 6371885928. Listed at 18 retailers as of October 31, 2026, with prices from $4,550 to $6,585, a $2,035 spread on the same certified stone. Taylor and Hart lists it at $6,585. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6371885928
Dimensions5.83 × 5.59 × 3.66 mm
L/W Ratio1.04
Top View
5.83 mm5.59 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6371885928
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.4%

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: Oct 31
Current: $6,560 NZD|Low: $4,514 NZD|High: $6,560 NZD|Avg: $5,274 NZD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$4,514 NZD
Retailer 7$4,550 NZD
Retailer 4$4,674 NZD
Retailer 3$5,054 NZD
Retailer 9$5,126 NZD
Retailer 6$5,520 NZD
Retailer 5$5,693 NZD
Retailer 2$5,850 NZD
Retailer 1$6,560 NZD

41 data points across 9 retailers

18 retailers$4,550 NZD to $6,585 NZD

B+
Cheapest Retailer
-
$4,550 NZD
$2,560 USD
B+
Retailer 2
-
$4,674 NZD
$2,630 USD
View
B+
Retailer 3
-
$4,749 NZD
$2,672 USD
View
B+
Retailer 4
-
$4,861 NZD
$2,735 USD
View
B+
Retailer 5
-
$4,959 NZD
A$4,292 AUD
View
B+
Retailer 6
-
$5,054 NZD
SGD 3,843 SGD
View
B
Retailer 7
-
$5,126 NZD
$2,884 USD
View
B
Retailer 8
-
$5,154 NZD
$2,900 USD
View
B+
Retailer 9
-
$5,518 NZD
CA$4,312 CAD
View
B+
Retailer 10
-
$5,520 NZD
$3,106 USD
View
B
Retailer 11
-
$5,693 NZD
A$4,928 AUD
View
B
Retailer 12
-
$5,812 NZD
$3,270 USD
View
B
Retailer 13
-
$5,812 NZD
$3,270 USD
View
B
Retailer 14
-
$5,850 NZD
£2,592 GBP
View
B
Retailer 15
-
$5,865 NZD
$3,300 USD
View
B
Retailer 16
-
$6,007 NZD
$3,380 USD
View
B
Retailer 17
-
$6,560 NZD
€3,515 EUR
View
Most Expensive
B
Taylor and Hart
LX2PUDX · Oct 31
$6,585 NZD
$3,705 USD
View
17 more retailers have this diamond
Prices start from $4,550 NZDSave up to $2,035 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
$4,550 NZD