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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 $6,445 NZD
As of November 4, 2026
Save $6,317 NZD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,763 NZD at NZ Jewellers · As of November 5, 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 November 4, 2026, with prices from $6,445 to $12,763, a $6,317 spread on the same certified stone. NZ Jewellers lists it at $12,763. 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: Nov 4
Current: $7,419 NZD|Low: $6,566 NZD|High: $12,101 NZD|Avg: $8,214 NZD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 5$6,566 NZD
Retailer 2$6,936 NZD
Retailer 1$7,419 NZD
Retailer 7$7,854 NZD
Retailer 3$8,244 NZD
Retailer 4$8,942 NZD
Retailer 6$11,956 NZD

36 data points across 7 retailers

16 retailers$6,445 NZD to $12,763 NZD

B+
Cheapest Retailer
-
$6,445 NZD
B+
Retailer 2
-
$6,566 NZD
View
B+
Retailer 3
-
$6,936 NZD
View
B+
Retailer 4
-
$6,981 NZD
View
B
Retailer 5
-
$7,326 NZD
View
B
Retailer 6
-
$7,326 NZD
View
Retailer 7
-
$7,326 NZD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$7,419 NZD
View
B
Retailer 9
-
$7,591 NZD
View
B
Retailer 10
-
$7,607 NZD
View
Retailer 11
-
$7,854 NZD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$8,244 NZD
View
B
Retailer 13
-
$8,453 NZD
View
B
Retailer 14
-
$8,942 NZD
View
B
Retailer 15
-
$11,956 NZD
View
Most Expensive
B
NZ Jewellers
daf17a90-33e0-4434-84b4-9175f08594d9 · Nov 5
$12,763 NZD
$7,075 USD
View
15 more retailers have this diamond
Prices start from $6,445 NZDSave up to $6,317 NZD

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
$6,445 NZD