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Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 6551672027

Certificate GIA 6551672027

Diamond specifications and retailer prices

From $3,157 NZD
HK$13,900 HKD
As of October 31, 2026
Save $5,057 NZD (62%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,214 NZD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551672027. Listed at 20 retailers as of October 28, 2026, with prices from $3,157 to $8,214, a $5,057 spread on the same certified stone. Queensmith lists it at $8,214. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551672027
Dimensions6.92 × 5.18 × 3.51 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Needle, Indented Natural, Natural
Top View
6.92 mm5.18 mm1.00 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551672027
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,214 NZD|Low: $3,111 NZD|High: $8,337 NZD|Avg: $4,672 NZD|+1.7%
Queensmith
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
October 31, 2026
Retailer 10$3,157 NZD
Retailer 2$3,332 NZD
Retailer 9$3,749 NZD
Retailer 5$3,866 NZD
Retailer 3$3,914 NZD
Retailer 6$3,944 NZD
Retailer 16$4,037 NZD
Retailer 14$4,099 NZD
Retailer 8$4,301 NZD
Retailer 7$4,376 NZD
Retailer 17$4,438 NZD
Retailer 4$4,572 NZD
Retailer 13$4,599 NZD
Retailer 11$5,150 NZD
Retailer 12$5,231 NZD
Retailer 15$7,380 NZD
Queensmith$8,214 NZD

23 data points across 17 retailers

20 retailers$3,157 NZD to $8,214 NZD

A
Cheapest Retailer
-
$3,157 NZD
HK$13,900 HKD
A
Retailer 2
-
$3,332 NZD
₹178,851 INR
View
B+
Retailer 3
-
$3,749 NZD
SGD 2,855 SGD
View
B+
Retailer 4
-
$3,866 NZD
$2,179 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,914 NZD
$2,206 USD
View
B+
Retailer 6
-
$3,944 NZD
$2,223 USD
View
B+
Retailer 7
-
$4,037 NZD
$2,275 USD
View
B+
Retailer 8
-
$4,037 NZD
$2,275 USD
View
B+
Retailer 9
-
$4,099 NZD
£1,819 GBP
View
Retailer 10
-
$4,301 NZD
$2,424 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$4,376 NZD
SGD 3,333 SGD
View
B+
Retailer 12
-
$4,438 NZD
$2,501 USD
View
B+
Retailer 13
-
$4,530 NZD
A$3,928 AUD
View
B+
Retailer 14
-
$4,572 NZD
$2,577 USD
View
B+
Retailer 15
-
$4,599 NZD
£2,041 GBP
View
B
Retailer 16
-
$5,150 NZD
ZAR 46,890 ZAR
View
B
Retailer 17
-
$5,231 NZD
€2,808 EUR
View
Retailer 18
-
$5,296 NZD
A$4,592 AUD
View
Price last confirmed 24 days ago
B
Retailer 19
-
$7,380 NZD
£3,275 GBP
View
Most Expensive
B
Queensmith
6551672027 · Oct 28
$8,214 NZD
£3,645 GBP
View
19 more retailers have this diamond
Prices start from $3,157 NZDSave up to $5,057 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
1.00ct Cushion
$3,157 NZD