Round|Natural|GIA

1.00ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6521858903

Certificate GIA 6521858903

Diamond specifications and retailer prices

From $2,393 USD
As of November 4, 2026
Save $2,793 USD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,418 USD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521858903. Listed at 21 retailers as of November 4, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521858903
Dimensions6.46 × 6.42 × 3.88 mm
L/W Ratio1.01
Top View
6.46 mm6.42 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521858903
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,326 USD|Low: $2,393 USD|High: $5,264 USD|Avg: $3,503 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$2,393 USD
Retailer 5$2,490 USD
Retailer 10$2,843 USD
Retailer 2$2,870 USD
Retailer 6$2,999 USD
Retailer 3$3,198 USD
Retailer 1$3,326 USD
Retailer 4$3,612 USD
Retailer 7$5,186 USD
Retailer 9$5,245 USD

36 data points across 10 retailers

21 retailers$2,393 USD to $5,186 USD

A
Cheapest Retailer
-
$2,393 USD
A
Retailer 2
-
$2,490 USD
View
A
Retailer 3
-
$2,843 USD
View
A
Retailer 4
-
$2,870 USD
View
Final sale: no returns
A
Retailer 5
-
$2,936 USD
View
A
Retailer 6
-
$2,999 USD
View
Retailer 7
-
$3,110 USD
View
Price last confirmed 44 days ago
Retailer 8
-
$3,110 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$3,110 USD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
$3,150 USD
View
B+
Retailer 11
-
$3,198 USD
View
Retailer 12
-
$3,230 USD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$3,253 USD
View
B+
Retailer 14
-
$3,326 USD
View
Retailer 15
-
$3,588 USD
View
Price last confirmed 45 days ago
Retailer 16
-
$3,588 USD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
$3,612 USD
View
B
Retailer 18
-
$5,186 USD
View
Retailer 19
-
$5,245 USD
View
Price last confirmed 9 days ago
Retailer 20
-
$5,418 USD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
648891c1-c419-4a43-b1f7-bc6f347ebb64 · Sep 26
$5,418 USD
View
Price last confirmed 40 days ago
20 more retailers have this diamond
Prices start from $2,393 USDSave up to $2,793 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 Round
$2,393 USD