Radiant|Natural|GIA

0.51ct D IF Radiant Natural Diamond

GD • D/IF • GIA 6551234500

Certificate GIA 6551234500

Diamond specifications and retailer prices

From $691 USD
HK$5,400 HKD
As of November 1, 2026
Save $2,228 USD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,919 USD at NZ Jewellers · As of October 30, 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 IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551234500. Listed at 16 retailers as of October 30, 2026, with prices from $691 to $2,919, a $2,228 spread on the same certified stone. NZ Jewellers lists it at $2,919. 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
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551234500
Dimensions5.32 × 3.98 × 2.74 mm
L/W Ratio1.34
Top View
5.32 mm3.98 mm0.51 ctD / IF
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6551234500
Side View
Table 67.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
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 1
Current: $2,919 USD|Low: $691 USD|High: $3,028 USD|Avg: $1,167 USD|-3.6%
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
Retailer 14
Retailer 15
November 1, 2026
Retailer 6$691 USD
Retailer 2$695 USD
Retailer 15$723 USD
Retailer 9$860 USD
Retailer 3$872 USD
Retailer 8$931 USD
Retailer 10$945 USD
Retailer 5$975 USD
Retailer 7$979 USD
Retailer 12$999 USD
Retailer 13$1,072 USD
Retailer 11$1,203 USD
Retailer 14$1,228 USD
Retailer 4$1,736 USD
NZ Jewellers$2,919 USD

25 data points across 15 retailers

16 retailers$691 USD to $2,919 USD

A
Cheapest Retailer
-
$691 USD
HK$5,400 HKD
A
Retailer 2
-
$695 USD
₹66,189 INR
View
A
Retailer 3
-
$723 USD
View
Final sale: no returns
A
Retailer 4
-
$860 USD
€819 EUR
View
A
Retailer 5
-
$872 USD
View
A
Retailer 6
-
$931 USD
View
A
Retailer 7
-
$945 USD
View
Retailer 8
-
$975 USD
SGD 1,318 SGD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$979 USD
View
B+
Retailer 10
-
$999 USD
View
B+
Retailer 11
-
$1,072 USD
View
B+
Retailer 12
-
$1,203 USD
€1,146 EUR
View
B+
Retailer 13
-
$1,228 USD
£967 GBP
View
Retailer 14
-
$1,469 USD
A$2,261 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$1,736 USD
£1,367 GBP
View
Most Expensive
B
NZ Jewellers
87dab150-77a9-465f-878a-5b067b58645c · Oct 30
$2,919 USD
View
15 more retailers have this diamond
Prices start from $691 USDSave up to $2,228 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
$691 USD