Radiant|Natural|GIA

1.00ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6552780350

Certificate GIA 6552780350

Diamond specifications and retailer prices

From $1,844 USD
As of November 6, 2026
Save $2,425 USD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,269 USD 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552780350. Listed at 18 retailers as of November 5, 2026, with prices from $1,844 to $4,269, a $2,425 spread on the same certified stone. NZ Jewellers lists it at $4,269. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552780350
Dimensions6.59 × 4.94 × 3.39 mm
L/W Ratio1.33
Culet sizeNone
Key to symbols
Crystal, Indented Natural, Needle, Extra Facet
Top View
6.59 mm4.94 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552780350
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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 6
Current: $4,269 USD|Low: $1,844 USD|High: $4,269 USD|Avg: $2,382 USD
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
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 6$1,844 USD
Retailer 4$1,878 USD
Retailer 9$1,884 USD
Retailer 11$1,981 USD
Retailer 14$2,042 USD
Retailer 17$2,042 USD
Retailer 5$2,075 USD
Retailer 10$2,136 USD
Retailer 2$2,218 USD
Retailer 3$2,252 USD
Retailer 8$2,273 USD
Retailer 16$2,356 USD
Retailer 7$2,410 USD
Retailer 13$2,492 USD
Retailer 12$2,601 USD
Retailer 15$3,568 USD
NZ Jewellers$4,269 USD

27 data points across 17 retailers

18 retailers$1,844 USD to $4,269 USD

A
Cheapest Retailer
-
$1,844 USD
A
Retailer 2
-
$1,878 USD
View
A
Retailer 3
-
$1,884 USD
View
Final sale: no returns
A
Retailer 4
-
$1,981 USD
View
Retailer 5
-
$2,042 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$2,042 USD
View
A
Retailer 7
-
$2,075 USD
View
A
Retailer 8
-
$2,136 USD
View
B+
Retailer 9
-
$2,218 USD
View
B+
Retailer 10
-
$2,252 USD
View
B+
Retailer 11
-
$2,273 USD
View
B+
Retailer 12
-
$2,356 USD
View
B+
Retailer 13
-
$2,410 USD
View
B+
Retailer 14
-
$2,492 USD
View
Retailer 15
-
$2,585 USD
View
Price last confirmed 33 days ago
B+
Retailer 16
-
$2,601 USD
View
B
Retailer 17
-
$3,568 USD
View
Most Expensive
B
NZ Jewellers
8ffe8412-8051-4d5c-843b-f63e5083e8d0 · Nov 5
$4,269 USD
View
17 more retailers have this diamond
Prices start from $1,844 USDSave up to $2,425 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
$1,844 USD