Radiant|Natural|GIA

0.51ct E IF Radiant Natural Diamond

ID • E/IF • GIA 5566403993

Certificate GIA 5566403993

Diamond specifications and retailer prices

From $620 USD
As of October 28, 2026
Save $707 USD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,260 USD at NZ Jewellers · As of October 3, 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 E 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 5566403993. Listed at 7 retailers as of October 28, 2026, with a 114% 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
E
Color
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle46.06°
Pavilion angle35.82°
OriginNatural
Grading LabGIA
CertificateGIA 5566403993
Dimensions5.78 × 3.98 × 2.61 mm
L/W Ratio1.45
Girdle conditionThick
Key to symbols
Minor Details of Polish
Top View
5.78 mm3.98 mm0.51 ctE / IF
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5566403993
Side View
Table 70.0%Crown 46.06°GirdlePavilion 35.82°CuletDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $818 USD|Low: $620 USD|High: $1,342 USD|Avg: $917 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4$620 USD
Retailer 1$818 USD
Retailer 3$900 USD
Retailer 2$1,327 USD

24 data points across 4 retailers

7 retailers$620 USD to $1,327 USD

A
Cheapest Retailer
-
$620 USD
A
Retailer 2
-
$721 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$748 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
$818 USD
£644 GBP
View
A
Retailer 5
-
$900 USD
View
B+
Retailer 6
-
$1,327 USD
£1,045 GBP
View
Most Expensive
B
NZ Jewellers
14f5f320-9fd1-485d-b89e-36bc43aa4592 · Oct 3
$2,260 USD
View
Price last confirmed 25 days ago
6 more retailers have this diamond
Prices start from $620 USDSave up to $707 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
$620 USD