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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2567270628

Certificate GIA 2567270628

Diamond specifications and retailer prices

From $1,792 USD
As of November 6, 2026
Save $2,371 USD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,039 USD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2567270628. Listed at 19 retailers as of November 4, 2026, with a 132% 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2567270628
Dimensions6.40 × 6.38 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.40 mm6.38 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2567270628
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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 6
Current: $1,792 USD|Low: $1,792 USD|High: $4,245 USD|Avg: $2,435 USD|-3.3%
Retailer 1
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 6, 2026
Retailer 1$1,792 USD
Retailer 6$1,792 USD
Retailer 5$2,018 USD
Retailer 11$2,043 USD
Retailer 14$2,085 USD
Retailer 3$2,173 USD
Retailer 10$2,186 USD
Retailer 4$2,198 USD
Retailer 7$2,280 USD
Retailer 12$2,530 USD
Retailer 9$2,730 USD
Retailer 8$2,801 USD
Retailer 2$3,459 USD
Retailer 13$4,163 USD

22 data points across 14 retailers

19 retailers$1,792 USD to $4,163 USD

A
Cheapest Retailer
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$1,792 USD
A
Retailer 2
-
$1,792 USD
View
Retailer 3
-
$2,018 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$2,043 USD
View
A
Retailer 5
-
$2,085 USD
View
A
Retailer 6
-
$2,173 USD
View
A
Retailer 7
-
$2,186 USD
View
A
Retailer 8
-
$2,189 USD
View
A
Retailer 9
-
$2,198 USD
View
Final sale: no returns
A
Retailer 10
-
$2,280 USD
View
Retailer 11
-
$2,410 USD
View
Price last confirmed 19 days ago
A
Retailer 12
-
$2,530 USD
View
Retailer 13
-
$2,550 USD
View
Price last confirmed 22 days ago
A
Retailer 14
-
$2,730 USD
View
Retailer 15
-
$2,781 USD
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$2,801 USD
View
B+
Retailer 17
-
$3,459 USD
View
B
Retailer 18
-
$4,163 USD
View
Most Expensive
NZ Jewellers
70971cb7-2c63-445b-9832-600e7f6dc01d · Oct 17
$5,039 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $1,792 USDSave up to $2,371 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
$1,792 USD