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Radiant|Natural|GIA

1.00ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 2556703636

Certificate GIA 2556703636

Diamond specifications and retailer prices

From $1,416 USD
₹134,875 INR
As of October 31, 2026
Save $3,183 USD (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,599 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556703636. Listed at 13 retailers as of October 30, 2026, with prices from $1,416 to $4,599, a $3,183 spread on the same certified stone. NZ Jewellers lists it at $4,599. 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
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2556703636
Dimensions6.72 × 4.92 × 3.44 mm
L/W Ratio1.37
Girdle conditionPolished
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
6.72 mm4.92 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2556703636
Side View
Table 70.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 70.0%

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: $4,599 USD|Low: $1,416 USD|High: $4,635 USD|Avg: $2,150 USD|-0.8%
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
November 1, 2026
Retailer 8$1,416 USD
Retailer 4$1,486 USD
Retailer 9$1,718 USD
Retailer 2$1,871 USD
Retailer 13$1,886 USD
Retailer 3$1,973 USD
Retailer 5$2,030 USD
Retailer 7$2,051 USD
Retailer 12$2,080 USD
Retailer 10$2,176 USD
Retailer 11$2,577 USD
Retailer 6$3,303 USD
NZ Jewellers$4,599 USD

34 data points across 13 retailers

13 retailers$1,416 USD to $4,599 USD

A
Cheapest Retailer
-
$1,416 USD
₹134,875 INR
A
Retailer 2
-
$1,486 USD
View
Final sale: no returns
A
Retailer 3
-
$1,718 USD
View
A
Retailer 4
-
$1,871 USD
View
A
Retailer 5
-
$1,886 USD
View
A
Retailer 6
-
$1,973 USD
View
A
Retailer 7
-
$2,030 USD
View
A
Retailer 8
-
$2,051 USD
£1,615 GBP
View
A
Retailer 9
-
$2,080 USD
£1,638 GBP
View
A
Retailer 10
-
$2,176 USD
View
B+
Retailer 11
-
$2,577 USD
€2,454 EUR
View
B+
Retailer 12
-
$3,303 USD
£2,601 GBP
View
Most Expensive
B
NZ Jewellers
de370069-1a6f-4651-b937-47086b40d709 · Oct 30
$4,599 USD
View
12 more retailers have this diamond
Prices start from $1,416 USDSave up to $3,183 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
$1,416 USD