CaratHunter
Plans
Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5182654799

Certificate GIA 5182654799

Diamond specifications and retailer prices

From $3,117 SGD
$2,437 USD
As of November 1, 2026
Save $3,309 SGD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,425 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5182654799. Listed at 11 retailers as of November 1, 2026, with prices from $3,117 to $6,425, a $3,309 spread on the same certified stone. MOH London lists it at $6,425. 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

1.05
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5182654799
Dimensions5.92 × 5.91 × 4.09 mm
L/W Ratio1.00
Top View
5.92 mm5.91 mm1.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5182654799
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NDepth 69.3%

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 1
Current: $6,425 SGD|Low: $3,427 SGD|High: $6,503 SGD|Avg: $4,398 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$3,427 SGD
Retailer 6$3,481 SGD
Retailer 5$4,105 SGD
Retailer 3$4,108 SGD
Retailer 2$4,497 SGD
Retailer 4$4,723 SGD
MOH London$6,425 SGD

44 data points across 7 retailers

11 retailers$3,117 SGD to $6,425 SGD

B
Cheapest Retailer
-
$3,117 SGD
$2,437 USD
B
Retailer 2
-
$3,427 SGD
$2,680 USD
View
B
Retailer 3
-
$3,481 SGD
$2,722 USD
View
B
Retailer 4
-
$3,947 SGD
$3,086 USD
View
B
Retailer 5
-
$3,976 SGD
$3,109 USD
View
Retailer 6
-
$4,105 SGD
A$4,938 AUD
View
Price last confirmed 26 days ago
B
Retailer 7
-
$4,108 SGD
£2,529 GBP
View
Retailer 8
-
$4,460 SGD
$3,487 USD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$4,497 SGD
€3,349 EUR
View
B
Retailer 10
-
$4,723 SGD
ZAR 59,659 ZAR
View
Most Expensive
B
MOH London
BC771DE4D · Nov 1
$6,425 SGD
£3,956 GBP
View
10 more retailers have this diamond
Prices start from $3,117 SGDSave up to $3,309 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
1.05ct Cushion
$3,117 SGD