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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1455156310

Certificate GIA 1455156310

Diamond specifications and retailer prices

From $4,568 SGD
$3,573 USD
As of October 30, 2026
Save $4,477 SGD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,045 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1455156310. Listed at 16 retailers as of October 30, 2026, with prices from $4,568 to $9,045, a $4,477 spread on the same certified stone. NZ Jewellers lists it at $9,045. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1455156310
Dimensions6.39 × 5.27 × 3.47 mm
L/W Ratio1.21
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Pinpoint, Natural
Top View
6.39 mm5.27 mm1.00 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1455156310
Side View
Table 74.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,943 SGD|Low: $4,685 SGD|High: $8,576 SGD|Avg: $5,806 SGD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$4,685 SGD
Retailer 1$4,943 SGD
Retailer 8$5,192 SGD
Retailer 3$5,267 SGD
Retailer 7$5,567 SGD
Retailer 5$5,877 SGD
Retailer 4$6,381 SGD
Retailer 2$8,473 SGD

37 data points across 8 retailers

16 retailers$4,568 SGD to $9,045 SGD

B+
Cheapest Retailer
-
$4,568 SGD
$3,573 USD
B+
Retailer 2
-
$4,685 SGD
$3,665 USD
View
B+
Retailer 3
-
$4,943 SGD
£3,044 GBP
View
B+
Retailer 4
-
$4,947 SGD
$3,870 USD
View
B
Retailer 5
-
$5,192 SGD
$4,061 USD
View
B
Retailer 6
-
$5,192 SGD
$4,061 USD
View
B
Retailer 7
-
$5,192 SGD
$4,061 USD
View
B
Retailer 8
-
$5,267 SGD
£3,244 GBP
View
B
Retailer 9
-
$5,380 SGD
$4,208 USD
View
B
Retailer 10
-
$5,391 SGD
$4,217 USD
View
Retailer 11
-
$5,567 SGD
A$6,699 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
$5,877 SGD
€4,378 EUR
View
B
Retailer 13
-
$5,991 SGD
$4,686 USD
View
B
Retailer 14
-
$6,381 SGD
ZAR 80,642 ZAR
View
B
Retailer 15
-
$8,473 SGD
£5,219 GBP
View
Most Expensive
B
NZ Jewellers
daf17a90-33e0-4434-84b4-9175f08594d9 · Oct 30
$9,045 SGD
$7,075 USD
View
15 more retailers have this diamond
Prices start from $4,568 SGDSave up to $4,477 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.

B+
1.00ct Radiant
$4,568 SGD