Radiant|Natural|GIA

0.51ct D VS1 Radiant Natural Diamond

GD • D/VS1 • GIA 6521492018

Certificate GIA 6521492018

Diamond specifications and retailer prices

From $569 USD
As of November 4, 2026
Save $853 USD (60%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,137 USD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521492018. Listed at 25 retailers as of November 4, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Color
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6521492018
Dimensions5.66 × 4.04 × 2.51 mm
L/W Ratio1.40
Top View
5.66 mm4.04 mm0.51 ctD / VS1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6521492018
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,954 USD|Low: $566 USD|High: $2,078 USD|Avg: $921 USD|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 11$569 USD
Retailer 12$616 USD
Retailer 5$650 USD
Retailer 7$664 USD
Retailer 4$671 USD
Retailer 2$750 USD
Retailer 3$751 USD
Retailer 8$772 USD
Retailer 13$805 USD
Retailer 10$906 USD
Retailer 6$951 USD
Retailer 9$1,422 USD
NZ Jewellers$1,954 USD

30 data points across 13 retailers

25 retailers$569 USD to $1,422 USD

A
Cheapest Retailer
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$569 USD
Final sale: no returns
A
Retailer 2
-
$616 USD
View
Retailer 3
-
$622 USD
View
Price last confirmed 41 days ago
Retailer 4
-
$650 USD
View
Price last confirmed 18 days ago
A
Retailer 5
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$664 USD
View
A
Retailer 6
-
$671 USD
View
Retailer 7
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$671 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$682 USD
View
Price last confirmed 35 days ago
Retailer 9
-
$685 USD
View
Price last confirmed 52 days ago
Retailer 10
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$708 USD
View
Price last confirmed 35 days ago
Retailer 11
-
$718 USD
View
Price last confirmed 42 days ago
A
Retailer 12
-
$750 USD
View
A
Retailer 13
-
$751 USD
View
A
Retailer 14
-
$772 USD
View
Retailer 15
-
$773 USD
View
Price last confirmed 60 days ago
Retailer 16
-
$786 USD
View
Price last confirmed 37 days ago
B+
Retailer 17
-
$805 USD
View
B+
Retailer 18
-
$906 USD
View
Retailer 19
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$945 USD
View
Price last confirmed 24 days ago
B+
Retailer 20
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$951 USD
View
Retailer 21
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$1,024 USD
View
Price last confirmed 32 days ago
B
Retailer 22
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$1,422 USD
View
Retailer 23
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$1,951 USD
View
Price last confirmed 41 days ago
Retailer 24
-
$1,954 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
d246f97e-490e-4c92-ac9c-00ab8f413077 · Sep 29
$2,137 USD
View
Price last confirmed 36 days ago
24 more retailers have this diamond
Prices start from $569 USDSave up to $853 USD

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.

A
0.51ct Radiant
$569 USD