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Radiant|Natural|IGI

1.00ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 766617727

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

Certificate IGI 766617727

Diamond specifications and retailer prices

From $1,135 USD
As of November 1, 2026
Save $1,929 USD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,064 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 766617727. Listed at 16 retailers as of October 30, 2026, with prices from $1,135 to $3,064, a $1,929 spread on the same certified stone. NZ Jewellers lists it at $3,064. 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 angle44.1°
Pavilion angle34.2°
OriginNatural
Grading LabIGI
CertificateIGI 766617727
Dimensions6.74 × 4.95 × 3.43 mm
L/W Ratio1.36
Culet sizePointed
Top View
6.74 mm4.95 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 766617727
Side View
Table 66.0%Crown 44.1°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 69.3%

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 1
Current: $3,064 USD|Low: $1,135 USD|High: $3,108 USD|Avg: $1,566 USD|-1.4%
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
November 2, 2026
Retailer 6$1,135 USD
Retailer 4$1,164 USD
Retailer 2$1,225 USD
Retailer 3$1,256 USD
Retailer 13$1,256 USD
Retailer 10$1,260 USD
Retailer 8$1,293 USD
Retailer 14$1,305 USD
Retailer 11$1,533 USD
Retailer 12$1,551 USD
Retailer 7$1,755 USD
Retailer 5$1,841 USD
Retailer 9$2,301 USD
NZ Jewellers$3,064 USD

20 data points across 14 retailers

16 retailers$1,135 USD to $3,064 USD

A
Cheapest Retailer
-
$1,135 USD
A
Retailer 2
-
$1,164 USD
SGD 1,573 SGD
View
A
Retailer 3
-
$1,222 USD
View
Final sale: no returns
A
Retailer 4
-
$1,225 USD
£965 GBP
View
A
Retailer 5
-
$1,256 USD
View
A
Retailer 6
-
$1,256 USD
View
A
Retailer 7
-
$1,260 USD
View
A
Retailer 8
-
$1,293 USD
£1,018 GBP
View
A
Retailer 9
-
$1,305 USD
View
B+
Retailer 10
-
$1,403 USD
A$2,158 AUD
View
A
Retailer 11
-
$1,533 USD
ZAR 24,772 ZAR
View
B+
Retailer 12
-
$1,551 USD
View
A
Retailer 13
-
$1,755 USD
€1,671 EUR
View
B+
Retailer 14
-
$1,841 USD
View
B+
Retailer 15
-
$2,301 USD
£1,812 GBP
View
Most Expensive
B
NZ Jewellers
edf30b26-637b-4d43-b625-f57293cead79 · Oct 30
$3,064 USD
View
15 more retailers have this diamond
Prices start from $1,135 USDSave up to $1,929 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
$1,135 USD