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Radiant|Natural|IGI

0.51ct D SI2 Radiant Natural Diamond

EX • D/SI2 • IGI 692555294

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 692555294

Diamond specifications and retailer prices

From $756 NZD
₹40,604 INR
As of October 30, 2026
Save $2,434 NZD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,190 NZD 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 692555294. Listed at 7 retailers as of October 30, 2026, with prices from $756 to $3,190, a $2,434 spread on the same certified stone. NZ Jewellers lists it at $3,190. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle42.6°
Pavilion angle32.4°
OriginNatural
Grading LabIGI
CertificateIGI 692555294
Dimensions5.25 × 4.08 × 2.72 mm
L/W Ratio1.29
Culet sizePointed
Top View
5.25 mm4.08 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 692555294
Side View
Table 66.0%Crown 42.6°Girdle: MED-STKPavilion 32.4°Culet: NoneDepth 66.7%

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 30
Current: $3,190 NZD|Low: $752 NZD|High: $3,286 NZD|Avg: $1,639 NZD|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$756 NZD
Retailer 8$1,158 NZD
Retailer 7$1,251 NZD
Retailer 5$1,275 NZD
Retailer 6$1,448 NZD
Retailer 3$1,507 NZD
Retailer 2$2,350 NZD
NZ Jewellers$3,190 NZD

46 data points across 8 retailers

7 retailers$756 NZD to $3,190 NZD

A
Cheapest Retailer
-
$756 NZD
₹40,604 INR
B+
Retailer 2
-
$1,251 NZD
$705 USD
View
A
Retailer 3
-
$1,275 NZD
£566 GBP
View
B+
Retailer 4
-
$1,448 NZD
$816 USD
View
B+
Retailer 5
-
$1,507 NZD
€809 EUR
View
B
Retailer 6
-
$2,350 NZD
£1,043 GBP
View
Most Expensive
B
NZ Jewellers
eb0ea19e-556b-4bfb-8a67-c25abd743aa2 · Oct 30
$3,190 NZD
$1,798 USD
View
6 more retailers have this diamond
Prices start from $756 NZDSave up to $2,434 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.

A
0.51ct Radiant
$756 NZD