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Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6551048681

Certificate GIA 6551048681

Diamond specifications and retailer prices

From $3,066 NZD
HK$13,500 HKD
As of October 31, 2026
Save $4,088 NZD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,154 NZD at MOH London · As of October 25, 2026
View at MOH London

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551048681. Listed at 17 retailers as of October 25, 2026, with prices from $3,066 to $7,154, a $4,088 spread on the same certified stone. MOH London lists it at $7,154. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551048681
Dimensions6.63 × 5.10 × 3.51 mm
L/W Ratio1.30
Top View
6.63 mm5.10 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6551048681
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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: $7,154 NZD|Low: $3,043 NZD|High: $7,429 NZD|Avg: $4,408 NZD|-3.7%
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
October 31, 2026
Retailer 8$3,066 NZD
Retailer 2$3,245 NZD
Retailer 7$3,649 NZD
Retailer 5$3,762 NZD
Retailer 3$3,811 NZD
Retailer 13$3,990 NZD
Retailer 15$4,077 NZD
Retailer 11$4,081 NZD
Retailer 6$4,258 NZD
Retailer 14$4,325 NZD
Retailer 4$4,455 NZD
Retailer 12$4,476 NZD
Retailer 9$5,012 NZD
Retailer 10$5,092 NZD
MOH London$7,154 NZD

24 data points across 15 retailers

17 retailers$3,066 NZD to $7,154 NZD

A
Cheapest Retailer
-
$3,066 NZD
HK$13,500 HKD
A
Retailer 2
-
$3,245 NZD
₹174,197 INR
View
A
Retailer 3
-
$3,649 NZD
SGD 2,779 SGD
View
A
Retailer 4
-
$3,762 NZD
$2,120 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,811 NZD
$2,148 USD
View
B+
Retailer 6
-
$3,928 NZD
$2,214 USD
View
A
Retailer 7
-
$3,990 NZD
£1,771 GBP
View
B+
Retailer 8
-
$4,077 NZD
$2,298 USD
View
B+
Retailer 9
-
$4,081 NZD
$2,300 USD
View
B+
Retailer 10
-
$4,258 NZD
SGD 3,243 SGD
View
B+
Retailer 11
-
$4,325 NZD
$2,438 USD
View
B+
Retailer 12
-
$4,455 NZD
$2,511 USD
View
B+
Retailer 13
-
$4,476 NZD
£1,986 GBP
View
B+
Retailer 14
-
$5,012 NZD
ZAR 45,638 ZAR
View
B+
Retailer 15
-
$5,092 NZD
€2,733 EUR
View
Retailer 16
-
$5,158 NZD
A$4,473 AUD
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
100B3F5F7 · Oct 25
$7,154 NZD
£3,175 GBP
View
16 more retailers have this diamond
Prices start from $3,066 NZDSave up to $4,088 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
$3,066 NZD