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Radiant|Natural|GIA

0.40ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 2151630416

Certificate GIA 2151630416

Diamond specifications and retailer prices

From $897 AUD
$630 USD
As of October 28, 2026
Save $510 AUD (36%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,407 AUD at Yorxs · As of October 31, 2026
View at Yorxs

About this 0.4ct natural radiant diamond

This 0.4ct natural radiant sits in the sub-half-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2151630416. Listed at 5 retailers as of October 28, 2026, with prices from $897 to $1,407, a $510 spread on the same certified stone. Yorxs lists it at $1,407. 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

0.40
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2151630416
Dimensions4.20 × 4.19 × 2.92 mm
L/W Ratio1.00
Culet sizeNone
Top View
4.20 mm4.19 mm0.40 ctJ / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2151630416
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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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: Oct 28
Current: $2,282 AUD|Low: $897 AUD|High: $2,309 AUD|Avg: $1,335 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 1, 2026
Retailer 3$897 AUD
Retailer 4$1,069 AUD
Retailer 2$1,220 AUD
Yorxs$1,407 AUD
Retailer 1$2,282 AUD

33 data points across 5 retailers

5 retailers$897 AUD to $1,407 AUD

B
Cheapest Retailer
-
$897 AUD
$630 USD
C
Retailer 2
-
$1,069 AUD
$751 USD
View
C
Retailer 3
-
$1,220 AUD
£675 GBP
View
Most Expensive
C
Yorxs
8A0795E34 · Oct 31
$1,407 AUD
€941 EUR
View
3 more retailers have this diamond
Prices start from $897 AUDSave up to $510 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
0.40ct Radiant
$897 AUD