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Radiant|Natural|GIA

1.00ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 2556802377

Certificate GIA 2556802377

Diamond specifications and retailer prices

From $1,639 USD
₹156,056 INR
As of October 31, 2026
Save $2,919 USD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,558 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 2556802377. Listed at 14 retailers as of October 30, 2026, with prices from $1,639 to $4,558, a $2,919 spread on the same certified stone. NZ Jewellers lists it at $4,558. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556802377
Dimensions6.94 × 4.95 × 3.30 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
6.94 mm4.95 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556802377
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.7%

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: $4,558 USD|Low: $1,639 USD|High: $4,620 USD|Avg: $2,473 USD|-1.3%
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
November 1, 2026
Retailer 9$1,639 USD
Retailer 6$1,723 USD
Retailer 3$1,922 USD
Retailer 10$1,970 USD
Retailer 2$2,166 USD
Retailer 4$2,180 USD
Retailer 5$2,281 USD
Retailer 13$2,319 USD
Retailer 8$2,392 USD
Retailer 14$2,500 USD
Retailer 11$2,516 USD
Retailer 12$2,777 USD
Retailer 7$3,820 USD
NZ Jewellers$4,558 USD

29 data points across 14 retailers

14 retailers$1,639 USD to $4,558 USD

A
Cheapest Retailer
-
$1,639 USD
₹156,056 INR
A
Retailer 2
-
$1,723 USD
View
Final sale: no returns
A
Retailer 3
-
$1,922 USD
View
A
Retailer 4
-
$1,970 USD
View
A
Retailer 5
-
$2,166 USD
View
A
Retailer 6
-
$2,180 USD
View
A
Retailer 7
-
$2,281 USD
View
A
Retailer 8
-
$2,319 USD
View
A
Retailer 9
-
$2,392 USD
£1,884 GBP
View
A
Retailer 10
-
$2,500 USD
View
A
Retailer 11
-
$2,516 USD
View
B+
Retailer 12
-
$2,777 USD
€2,645 EUR
View
B+
Retailer 13
-
$3,820 USD
£3,008 GBP
View
Most Expensive
B
NZ Jewellers
831279fb-7ab0-4cbb-8523-a05ce6f13ea7 · Oct 30
$4,558 USD
View
13 more retailers have this diamond
Prices start from $1,639 USDSave up to $2,919 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
$1,639 USD