Radiant|Natural|GIA

1.00ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1423827962

Certificate GIA 1423827962

Diamond specifications and retailer prices

From $1,382 USD
HK$10,800 HKD
As of October 31, 2026
Save $3,053 USD (69%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $4,435 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1423827962. Listed at 28 retailers as of October 30, 2026, with prices from $1,382 to $4,435, a $3,053 spread on the same certified stone. NZ Jewellers lists it at $4,435. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1423827962
Dimensions6.14 × 5.01 × 3.44 mm
L/W Ratio1.23
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural, Natural
Top View
6.14 mm5.01 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1423827962
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.7%

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: Oct 31
Current: $1,382 USD|Low: $1,382 USD|High: $3,225 USD|Avg: $2,055 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 1$1,382 USD
Retailer 9$1,465 USD
Retailer 4$1,510 USD
Retailer 12$1,545 USD
Retailer 2$1,725 USD
Retailer 7$1,779 USD
Retailer 5$2,022 USD
Retailer 8$2,089 USD
Retailer 10$2,214 USD
Retailer 3$2,373 USD
Retailer 6$2,484 USD
Retailer 11$3,203 USD

32 data points across 12 retailers

28 retailers$1,382 USD to $4,435 USD

B+
Cheapest Retailer
-
$1,382 USD
HK$10,800 HKD
A
Retailer 2
-
$1,465 USD
View
B+
Retailer 3
-
$1,470 USD
View
B+
Retailer 4
-
$1,505 USD
View
B+
Retailer 5
-
$1,510 USD
View
Final sale: no returns
Retailer 6
-
$1,545 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$1,569 USD
View
B+
Retailer 8
-
$1,589 USD
View
B+
Retailer 9
-
$1,629 USD
View
B+
Retailer 10
-
$1,647 USD
View
B+
Retailer 11
-
$1,647 USD
View
B+
Retailer 12
-
$1,723 USD
View
B+
Retailer 13
-
$1,725 USD
View
B+
Retailer 14
-
$1,779 USD
£1,401 GBP
View
B+
Retailer 15
-
$1,826 USD
View
B+
Retailer 16
-
$1,901 USD
View
B+
Retailer 17
-
$1,940 USD
View
B+
Retailer 18
-
$1,940 USD
View
B+
Retailer 19
-
$2,000 USD
View
B+
Retailer 20
-
$2,022 USD
£1,592 GBP
View
B+
Retailer 21
-
$2,089 USD
CA$2,901 CAD
View
B+
Retailer 22
-
$2,180 USD
View
B+
Retailer 23
-
$2,214 USD
ZAR 35,771 ZAR
View
Retailer 24
-
$2,373 USD
A$3,651 AUD
View
Price last confirmed 26 days ago
B
Retailer 25
-
$2,484 USD
€2,366 EUR
View
B
Retailer 26
-
$2,605 USD
View
B
Retailer 27
-
$3,203 USD
£2,522 GBP
View
Most Expensive
C
NZ Jewellers
a5a2f86b-393c-4802-b9f6-c6f23ea67717 · Oct 30
$4,435 USD
View
27 more retailers have this diamond
Prices start from $1,382 USDSave up to $3,053 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
$1,382 USD