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Round|Natural|GIA

1.00ct M I1 Round Natural Diamond

EX • M/I1 • GIA 6451834508

Certificate GIA 6451834508

Diamond specifications and retailer prices

From $1,809 USD
As of November 5, 2026
Save $902 USD (33%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,870 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6451834508. Listed at 6 retailers as of November 5, 2026, with a 50% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
M
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6451834508
Dimensions6.33 × 6.40 × 3.98 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.33 mm6.40 mm1.00 ctM / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6451834508
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,870 USD|Low: $1,513 USD|High: $4,870 USD|Avg: $2,316 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3$1,513 USD
Retailer 11$1,649 USD
Retailer 8$1,786 USD
Retailer 5$1,809 USD
Retailer 7$1,809 USD
Retailer 4$1,892 USD
Retailer 6$2,087 USD
Retailer 9$2,375 USD
Retailer 2$2,711 USD
Retailer 10$2,922 USD
NZ Jewellers$4,870 USD

20 data points across 11 retailers

6 retailers$1,809 USD to $2,711 USD

Retailer 1
-
$1,809 USD
Price last confirmed 8 days ago
B
Retailer 2
-
$1,809 USD
View
B
Retailer 3
-
$1,892 USD
View
B
Retailer 4
-
$2,087 USD
View
B
Retailer 5
-
$2,711 USD
View
Most Expensive
NZ Jewellers
5682ad06-26e2-4955-bc60-3ebbfdacf42e · Nov 5
$4,870 USD
View
Price under review
5 more retailers have this diamond
Prices start from $1,809 USDSave up to $902 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.

B
1.00ct Round
$1,809 USD