Radiant|Natural|IGI

1.00ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 671474709

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

Certificate IGI 671474709

Diamond specifications and retailer prices

From $1,366 USD
As of October 31, 2026
Save $2,244 USD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,610 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 671474709. Listed at 18 retailers as of October 30, 2026, with prices from $1,366 to $3,610, a $2,244 spread on the same certified stone. NZ Jewellers lists it at $3,610. 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

1.00
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle34.2°
OriginNatural
Grading LabIGI
CertificateIGI 671474709
Dimensions7.27 × 5.24 × 3.22 mm
L/W Ratio1.39
Culet sizePointed
Top View
7.27 mm5.24 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671474709
Side View
Table 67.0%Crown 39.6°Girdle: THN-MEDPavilion 34.2°Culet: NoneDepth 61.5%

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 31
Current: $3,610 USD|Low: $1,218 USD|High: $3,610 USD|Avg: $1,727 USD
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
Retailer 16
Retailer 17
October 31, 2026
Retailer 17$1,366 USD
Retailer 9$1,372 USD
Retailer 15$1,390 USD
Retailer 13$1,448 USD
Retailer 3$1,480 USD
Retailer 6$1,480 USD
Retailer 7$1,483 USD
Retailer 8$1,545 USD
Retailer 16$1,548 USD
Retailer 5$1,575 USD
Retailer 4$1,616 USD
Retailer 10$1,679 USD
Retailer 2$1,708 USD
Retailer 12$1,806 USD
Retailer 11$2,060 USD
Retailer 14$2,596 USD
NZ Jewellers$3,610 USD

33 data points across 17 retailers

18 retailers$1,366 USD to $3,610 USD

B+
Cheapest Retailer
-
$1,366 USD
Final sale: no returns
B+
Retailer 2
-
$1,372 USD
View
B+
Retailer 3
-
$1,390 USD
View
A
Retailer 4
-
$1,416 USD
A$2,178 AUD
View
B+
Retailer 5
-
$1,448 USD
£1,140 GBP
View
B+
Retailer 6
-
$1,480 USD
View
B+
Retailer 7
-
$1,480 USD
View
B+
Retailer 8
-
$1,483 USD
View
B+
Retailer 9
-
$1,545 USD
View
B+
Retailer 10
-
$1,548 USD
View
B+
Retailer 11
-
$1,575 USD
View
B+
Retailer 12
-
$1,616 USD
View
B+
Retailer 13
-
$1,679 USD
£1,322 GBP
View
B+
Retailer 14
-
$1,708 USD
View
A
Retailer 15
-
$1,806 USD
ZAR 29,183 ZAR
View
B+
Retailer 16
-
$2,060 USD
€1,962 EUR
View
B
Retailer 17
-
$2,596 USD
£2,044 GBP
View
Most Expensive
C
NZ Jewellers
08cb3b54-3898-4cb8-b5ad-607dc928e373 · Oct 30
$3,610 USD
View
17 more retailers have this diamond
Prices start from $1,366 USDSave up to $2,244 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
1.00ct Radiant
$1,366 USD