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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 $1,452 SGD
$1,135 USD
As of November 1, 2026
Save $2,467 SGD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,919 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 766617727. Listed at 16 retailers as of October 30, 2026, with prices from $1,452 to $3,919, a $2,467 spread on the same certified stone. NZ Jewellers lists it at $3,919. 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 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: $3,919 SGD|Low: $1,452 SGD|High: $3,975 SGD|Avg: $2,003 SGD|-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$1,452 SGD
Retailer 4$1,489 SGD
Retailer 2$1,567 SGD
Retailer 3$1,606 SGD
Retailer 13$1,606 SGD
Retailer 10$1,611 SGD
Retailer 8$1,653 SGD
Retailer 14$1,669 SGD
Retailer 11$1,961 SGD
Retailer 12$1,984 SGD
Retailer 7$2,244 SGD
Retailer 5$2,355 SGD
Retailer 9$2,943 SGD
NZ Jewellers$3,919 SGD

20 data points across 14 retailers

16 retailers$1,452 SGD to $3,919 SGD

A
Cheapest Retailer
-
$1,452 SGD
$1,135 USD
A
Retailer 2
-
$1,489 SGD
View
A
Retailer 3
-
$1,563 SGD
$1,222 USD
View
Final sale: no returns
A
Retailer 4
-
$1,567 SGD
£965 GBP
View
A
Retailer 5
-
$1,606 SGD
$1,256 USD
View
A
Retailer 6
-
$1,606 SGD
$1,256 USD
View
A
Retailer 7
-
$1,611 SGD
$1,260 USD
View
A
Retailer 8
-
$1,653 SGD
£1,018 GBP
View
A
Retailer 9
-
$1,669 SGD
$1,305 USD
View
B+
Retailer 10
-
$1,794 SGD
A$2,158 AUD
View
A
Retailer 11
-
$1,961 SGD
ZAR 24,772 ZAR
View
B+
Retailer 12
-
$1,984 SGD
$1,551 USD
View
A
Retailer 13
-
$2,244 SGD
€1,671 EUR
View
B+
Retailer 14
-
$2,355 SGD
$1,841 USD
View
B+
Retailer 15
-
$2,943 SGD
£1,812 GBP
View
Most Expensive
B
NZ Jewellers
edf30b26-637b-4d43-b625-f57293cead79 · Oct 30
$3,919 SGD
$3,064 USD
View
15 more retailers have this diamond
Prices start from $1,452 SGDSave up to $2,467 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
$1,452 SGD