Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 6551995027

Certificate GIA 6551995027

Diamond specifications and retailer prices

From $1,728 USD
As of November 5, 2026
Save $1,157 USD (40%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,503 USD at NZ Jewellers · As of October 20, 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 very-good cut grade and certified by GIA 6551995027. Listed at 24 retailers as of November 5, 2026, with a 67% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6551995027
Dimensions6.23 × 6.15 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.23 mm6.15 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6551995027
Side View
Table 58.0%Crown 38.5°Girdle: MED-THKPavilion 40°Culet: NDepth 64.2%

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: Nov 5
Current: $4,503 USD|Low: $1,638 USD|High: $4,697 USD|Avg: $2,531 USD|-4.1%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 11$1,681 USD
Retailer 3$1,728 USD
Retailer 2$1,854 USD
Retailer 6$1,895 USD
Retailer 21$1,997 USD
Retailer 7$2,040 USD
Retailer 14$2,041 USD
Retailer 18$2,085 USD
Retailer 16$2,168 USD
Retailer 12$2,218 USD
Retailer 8$2,224 USD
Retailer 5$2,380 USD
Retailer 22$2,380 USD
Retailer 19$2,448 USD
Retailer 17$2,460 USD
Retailer 10$2,485 USD
Retailer 4$2,765 USD
Retailer 13$2,766 USD
Retailer 15$2,797 USD
Retailer 20$2,885 USD
Retailer 9$3,793 USD
NZ Jewellers$4,503 USD

25 data points across 22 retailers

24 retailers$1,728 USD to $2,885 USD

Retailer 1
-
$1,681 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$1,728 USD
View
A
Retailer 3
-
$1,854 USD
View
A
Retailer 4
-
$1,895 USD
View
Final sale: no returns
A
Retailer 5
-
$1,997 USD
View
Retailer 6
-
$2,041 USD
View
Price last confirmed 22 days ago
A
Retailer 7
-
$2,085 USD
View
B+
Retailer 8
-
$2,168 USD
View
Retailer 9
-
$2,218 USD
View
Price last confirmed 21 days ago
Retailer 10
-
$2,218 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$2,224 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$2,273 USD
View
Retailer 13
-
$2,320 USD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
$2,380 USD
View
B+
Retailer 15
-
$2,380 USD
View
B+
Retailer 16
-
$2,448 USD
View
B+
Retailer 17
-
$2,460 USD
View
Retailer 18
-
$2,485 USD
View
Price last confirmed 16 days ago
B+
Retailer 19
-
$2,765 USD
View
B+
Retailer 20
-
$2,766 USD
View
Retailer 21
-
$2,797 USD
View
Price last confirmed 31 days ago
B+
Retailer 22
-
$2,885 USD
View
Retailer 23
-
$3,793 USD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
26d58c3d-955b-4e7c-893a-a17bfa42d8f1 · Oct 20
$4,503 USD
View
Price last confirmed 17 days ago
23 more retailers have this diamond
Prices start from $1,728 USDSave up to $1,157 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
$1,728 USD