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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 $1,747 SGD
$1,366 USD
As of November 2, 2026
Save $2,870 SGD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,617 SGD 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 $1,747 to $4,617, a $2,870 spread on the same certified stone. NZ Jewellers lists it at $4,617. 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
Colour
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: Nov 2
Current: $4,617 SGD|Low: $1,564 SGD|High: $4,617 SGD|Avg: $2,240 SGD
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
November 2, 2026
Retailer 3$1,747 SGD
Retailer 9$1,755 SGD
Retailer 17$1,778 SGD
Retailer 10$1,846 SGD
Retailer 6$1,893 SGD
Retailer 12$1,893 SGD
Retailer 7$1,897 SGD
Retailer 8$1,976 SGD
Retailer 2$1,980 SGD
Retailer 5$2,014 SGD
Retailer 4$2,066 SGD
Retailer 11$2,147 SGD
Retailer 14$2,184 SGD
Retailer 16$2,310 SGD
Retailer 15$2,635 SGD
Retailer 13$3,317 SGD
NZ Jewellers$4,617 SGD

32 data points across 17 retailers

18 retailers$1,747 SGD to $4,617 SGD

B+
Cheapest Retailer
-
$1,747 SGD
$1,366 USD
Final sale: no returns
B+
Retailer 2
-
$1,755 SGD
$1,372 USD
View
B+
Retailer 3
-
$1,778 SGD
$1,390 USD
View
A
Retailer 4
-
$1,811 SGD
A$2,178 AUD
View
A
Retailer 5
-
$1,846 SGD
£1,137 GBP
View
B+
Retailer 6
-
$1,893 SGD
$1,480 USD
View
B+
Retailer 7
-
$1,893 SGD
$1,480 USD
View
B+
Retailer 8
-
$1,897 SGD
$1,483 USD
View
B+
Retailer 9
-
$1,976 SGD
$1,545 USD
View
B+
Retailer 10
-
$1,980 SGD
$1,548 USD
View
B+
Retailer 11
-
$2,014 SGD
$1,575 USD
View
B+
Retailer 12
-
$2,066 SGD
$1,616 USD
View
B+
Retailer 13
-
$2,147 SGD
£1,322 GBP
View
B+
Retailer 14
-
$2,184 SGD
$1,708 USD
View
A
Retailer 15
-
$2,310 SGD
ZAR 29,183 ZAR
View
B+
Retailer 16
-
$2,635 SGD
€1,962 EUR
View
B
Retailer 17
-
$3,317 SGD
£2,042 GBP
View
Most Expensive
C
NZ Jewellers
08cb3b54-3898-4cb8-b5ad-607dc928e373 · Oct 30
$4,617 SGD
$3,610 USD
View
17 more retailers have this diamond
Prices start from $1,747 SGDSave up to $2,870 SGD

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
$1,747 SGD