CaratHunter
Plans
Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6381887861

Certificate GIA 6381887861

Diamond specifications and retailer prices

From $4,109 NZD
As of November 6, 2026
Save $4,548 NZD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,658 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6381887861. Listed at 23 retailers as of November 4, 2026, with prices from $4,109 to $8,658, a $4,548 spread on the same certified stone. MOH London lists it at $8,658. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6381887861
Dimensions6.27 × 5.44 × 3.71 mm
L/W Ratio1.15
Top View
6.27 mm5.44 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6381887861
Side View
Table 60.0%CrownGirdle: VTN-STKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,658 NZD|Low: $3,617 NZD|High: $8,786 NZD|Avg: $5,390 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$4,109 NZD
Retailer 10$4,149 NZD
Retailer 8$4,342 NZD
Retailer 4$4,645 NZD
Retailer 11$4,703 NZD
Retailer 12$5,107 NZD
Retailer 6$5,462 NZD
Retailer 9$5,816 NZD
Retailer 5$6,070 NZD
Retailer 7$6,335 NZD
Retailer 2$6,462 NZD
MOH London$8,658 NZD

45 data points across 12 retailers

23 retailers$4,109 NZD to $8,658 NZD

B
Cheapest Retailer
-
$4,109 NZD
Retailer 2
-
$4,149 NZD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$4,212 NZD
View
B
Retailer 4
-
$4,228 NZD
View
B
Retailer 5
-
$4,342 NZD
View
Final sale: no returns
B
Retailer 6
-
$4,365 NZD
View
B
Retailer 7
-
$4,418 NZD
View
B
Retailer 8
-
$4,436 NZD
View
B
Retailer 9
-
$4,645 NZD
View
Retailer 10
-
$4,703 NZD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$5,101 NZD
View
B
Retailer 12
-
$5,107 NZD
View
B
Retailer 13
-
$5,141 NZD
View
C
Retailer 14
-
$5,376 NZD
View
C
Retailer 15
-
$5,376 NZD
View
B
Retailer 16
-
$5,462 NZD
View
C
Retailer 17
-
$5,556 NZD
View
Retailer 18
-
$5,816 NZD
View
Price last confirmed 31 days ago
Retailer 19
-
$6,029 NZD
View
Price last confirmed 15 days ago
C
Retailer 20
-
$6,070 NZD
View
C
Retailer 21
-
$6,335 NZD
View
Retailer 22
-
$6,462 NZD
View
Most Expensive
C
MOH London
1B61C6405 · Nov 4
$8,658 NZD
£3,779 GBP
View
22 more retailers have this diamond
Prices start from $4,109 NZDSave up to $4,548 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
$4,109 NZD