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 $2,919 SGD
As of November 6, 2026
Save $3,231 SGD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,151 SGD 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 $2,919 to $6,151, a $3,231 spread on the same certified stone. MOH London lists it at $6,151. 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: $6,151 SGD|Low: $2,570 SGD|High: $6,242 SGD|Avg: $3,829 SGD|-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$2,919 SGD
Retailer 10$2,948 SGD
Retailer 8$3,085 SGD
Retailer 4$3,300 SGD
Retailer 11$3,341 SGD
Retailer 12$3,628 SGD
Retailer 6$3,881 SGD
Retailer 9$4,132 SGD
Retailer 5$4,313 SGD
Retailer 7$4,501 SGD
Retailer 2$4,591 SGD
MOH London$6,151 SGD

45 data points across 12 retailers

23 retailers$2,919 SGD to $6,151 SGD

B
Cheapest Retailer
-
$2,919 SGD
Retailer 2
-
$2,948 SGD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$2,993 SGD
View
B
Retailer 4
-
$3,004 SGD
View
B
Retailer 5
-
$3,085 SGD
View
Final sale: no returns
B
Retailer 6
-
$3,101 SGD
View
B
Retailer 7
-
$3,139 SGD
View
B
Retailer 8
-
$3,151 SGD
View
B
Retailer 9
-
$3,300 SGD
View
Retailer 10
-
$3,341 SGD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$3,624 SGD
View
B
Retailer 12
-
$3,628 SGD
View
B
Retailer 13
-
$3,653 SGD
View
C
Retailer 14
-
$3,819 SGD
View
C
Retailer 15
-
$3,819 SGD
View
B
Retailer 16
-
$3,881 SGD
View
C
Retailer 17
-
$3,947 SGD
View
Retailer 18
-
$4,132 SGD
View
Price last confirmed 31 days ago
Retailer 19
-
$4,283 SGD
View
Price last confirmed 15 days ago
C
Retailer 20
-
$4,313 SGD
View
C
Retailer 21
-
$4,501 SGD
View
Retailer 22
-
$4,591 SGD
View
Most Expensive
C
MOH London
1B61C6405 · Nov 4
$6,151 SGD
£3,779 GBP
View
22 more retailers have this diamond
Prices start from $2,919 SGDSave up to $3,231 SGD

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
$2,919 SGD