CaratHunter
Plans
Radiant|Natural|IGI

0.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • IGI F4E77010

Certificate IGI F4E77010

Diamond specifications and retailer prices

From $2,240 NZD
£993 GBP
As of November 3, 2026
Save $1,333 NZD (37%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,573 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI F4E77010. Listed at 4 retailers as of November 2, 2026, with prices from $2,240 to $3,573, a $1,333 spread on the same certified stone. MOH London lists it at $3,573. 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle14°
Pavilion angle61.5°
OriginNatural
Grading LabIGI
CertificateIGI F4E77010
Dimensions4.47 × 4.29 × 3.34 mm
L/W Ratio1.04
Top View
4.47 mm4.29 mm0.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI F4E77010
Side View
Table 63.0%Crown 14°Girdle: VTN-MEDPavilion 61.5°CuletDepth 77.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $3,573 NZD|Low: $2,141 NZD|High: $3,616 NZD|Avg: $2,641 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 5$2,195 NZD
Retailer 2$2,240 NZD
Retailer 4$2,444 NZD
Retailer 3$2,732 NZD
MOH London$3,573 NZD

36 data points across 5 retailers

4 retailers$2,240 NZD to $3,573 NZD

B
Cheapest Retailer
-
$2,240 NZD
£993 GBP
B
Retailer 2
-
$2,444 NZD
£1,083 GBP
View
C
Retailer 3
-
$2,732 NZD
€1,464 EUR
View
Most Expensive
C
MOH London
CB50CA2AF · Nov 2
$3,573 NZD
£1,583 GBP
View
3 more retailers have this diamond
Prices start from $2,240 NZDSave up to $1,333 NZD

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
$2,240 NZD