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Cushion|Natural|GIA

0.50ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 6187301022

Certificate GIA 6187301022

Diamond specifications and retailer prices

From $691 AUD
As of November 1, 2026
Save $616 AUD (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,307 AUD at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6187301022. Listed at 3 retailers as of November 1, 2026, with prices from $691 to $1,307, a $616 spread on the same certified stone. 77 Diamonds lists it at $1,307. 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

0.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6187301022
Dimensions4.55 × 4.45 × 3.20 mm
L/W Ratio1.02
Culet sizeNone
Top View
4.55 mm4.45 mm0.50 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6187301022
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,307 AUD|Low: $659 AUD|High: $1,319 AUD|Avg: $1,012 AUD|+5.2%
77 Diamonds
Retailer 2
Retailer 3
November 5, 2026
Retailer 3$691 AUD
Retailer 2$1,084 AUD
77 Diamonds$1,307 AUD

41 data points across 3 retailers

3 retailers$691 AUD to $1,307 AUD

B+
Cheapest Retailer
-
$691 AUD
B
Retailer 2
-
$1,084 AUD
View
Most Expensive
B
77 Diamonds
CUSZ2JDUJBPN · Nov 5
$1,307 AUD
£707 GBP
View
2 more retailers have this diamond
Prices start from $691 AUDSave up to $616 AUD

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+
0.50ct Cushion
$691 AUD