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Radiant|Natural|GIA

0.51ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 2221712123

Certificate GIA 2221712123

Diamond specifications and retailer prices

From $559 AUD
$393 USD
As of November 2, 2026
Save $401 AUD (42%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $961 AUD at DreamStone · As of October 31, 2026
View at DreamStone

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2221712123. Listed at 3 retailers as of October 31, 2026, with prices from $559 to $961, a $401 spread on the same certified stone. DreamStone lists it at $961. 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

0.51
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2221712123
Dimensions4.25 × 3.93 × 3.37 mm
L/W Ratio1.08
Girdle conditionPolished
Top View
4.25 mm3.93 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 2221712123
Side View
Table 75.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 85.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $961 AUD|Low: $508 AUD|High: $1,233 AUD|Avg: $894 AUD
DreamStone
Retailer 2
Retailer 3
Retailer 4
October 5, 2026
Retailer 2$559 AUD
Retailer 3$847 AUD
DreamStone$961 AUD
Retailer 4$1,233 AUD

2 data points across 4 retailers

3 retailers$559 AUD to $961 AUD

B+
Cheapest Retailer
-
$559 AUD
$393 USD
Final sale: no returns
B+
Retailer 2
-
$847 AUD
$595 USD
View
Most Expensive
B
DreamStone
CC2737 · Oct 31
$961 AUD
$675 USD
View
2 more retailers have this diamond
Prices start from $559 AUDSave up to $401 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+
0.51ct Radiant
$559 AUD