Radiant|Natural|GIA

0.51ct D IF Radiant Natural Diamond

ID • D/IF • GIA 2557954542

Certificate GIA 2557954542

Diamond specifications and retailer prices

From $750 USD
As of October 29, 2026
Save $733 USD (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,537 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557954542. Listed at 10 retailers as of October 25, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Color
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle46.21°
Pavilion angle31.57°
OriginNatural
Grading LabGIA
CertificateGIA 2557954542
Dimensions5.90 × 4.05 × 2.45 mm
L/W Ratio1.46
Girdle conditionSlightly Thick
Key to symbols
Minor Details of Polish
Top View
5.90 mm4.05 mm0.51 ctD / IF
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557954542
Side View
Table 70.0%Crown 46.21°GirdlePavilion 31.57°CuletDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $911 USD|Low: $750 USD|High: $1,500 USD|Avg: $1,093 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 2$750 USD
Retailer 1$911 USD
Retailer 4$975 USD
Retailer 5$1,216 USD
Retailer 3$1,483 USD

36 data points across 5 retailers

10 retailers$750 USD to $1,483 USD

A
Cheapest Retailer
-
$750 USD
Retailer 2
-
$809 USD
View
Price last confirmed 22 days ago
Retailer 3
-
$809 USD
View
Price last confirmed 38 days ago
Retailer 4
-
$840 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$911 USD
£717 GBP
View
A
Retailer 6
-
$975 USD
View
Retailer 7
-
$1,216 USD
A$1,871 AUD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
$1,483 USD
£1,168 GBP
View
Retailer 9
-
$2,537 USD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
21b98894-6ed0-4fc5-afce-23bb7cbeeeb6 · Sep 29
$2,537 USD
View
Price last confirmed 31 days ago
9 more retailers have this diamond
Prices start from $750 USDSave up to $733 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
$750 USD