Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 6551498300

Certificate GIA 6551498300

Diamond specifications and retailer prices

From $3,647 NZD
As of November 5, 2026
Save $2,215 NZD (38%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $16,236 NZD at MOH London · As of October 21, 2026
View at MOH London

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 6551498300. Listed at 27 retailers as of November 5, 2026, with a 61% 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
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551498300
Dimensions6.25 × 6.19 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.25 mm6.19 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551498300
Side View
Table 60.0%Crown 36°Girdle: STK-THKPavilion 41.6°Culet: NDepth 64.5%

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: $16,236 NZD|Low: $3,525 NZD|High: $16,236 NZD|Avg: $5,535 NZD|+87.1%
MOH London
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
November 6, 2026
Retailer 20$3,647 NZD
Retailer 9$3,801 NZD
Retailer 4$3,923 NZD
Retailer 16$4,008 NZD
Retailer 7$4,048 NZD
Retailer 17$4,225 NZD
Retailer 14$4,329 NZD
Retailer 12$4,454 NZD
Retailer 8$4,506 NZD
Retailer 2$4,586 NZD
Retailer 11$4,894 NZD
Retailer 5$4,997 NZD
Retailer 6$4,997 NZD
Retailer 15$5,042 NZD
Retailer 13$5,159 NZD
Retailer 10$5,482 NZD
Retailer 19$5,563 NZD
Retailer 18$5,850 NZD
Retailer 3$5,863 NZD
MOH London$16,236 NZD

26 data points across 20 retailers

27 retailers$3,647 NZD to $5,863 NZD

A
Cheapest Retailer
-
$3,647 NZD
Retailer 2
-
$3,801 NZD
View
Price last confirmed 26 days ago
A
Retailer 3
-
$3,923 NZD
View
A
Retailer 4
-
$4,008 NZD
View
Final sale: no returns
A
Retailer 5
-
$4,048 NZD
View
B+
Retailer 6
-
$4,225 NZD
View
A
Retailer 7
-
$4,329 NZD
View
Retailer 8
-
$4,454 NZD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$4,586 NZD
View
B+
Retailer 10
-
$4,746 NZD
View
Retailer 11
-
$4,894 NZD
View
Price last confirmed 25 days ago
Retailer 12
-
$4,894 NZD
View
Price last confirmed 39 days ago
Retailer 13
-
$4,894 NZD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$4,997 NZD
View
B+
Retailer 15
-
$4,997 NZD
View
B+
Retailer 16
-
$5,042 NZD
View
Retailer 17
-
$5,069 NZD
View
Price last confirmed 26 days ago
Retailer 18
-
$5,082 NZD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$5,159 NZD
View
Retailer 20
-
$5,482 NZD
View
Price last confirmed 30 days ago
B+
Retailer 21
-
$5,563 NZD
View
Retailer 22
-
$5,646 NZD
View
Price last confirmed 38 days ago
B+
Retailer 23
-
$5,850 NZD
View
B+
Retailer 24
-
$5,863 NZD
View
Retailer 25
-
$10,232 NZD
View
Price last confirmed 40 days ago
Retailer 26
-
$10,232 NZD
View
Price last confirmed 34 days ago
Most Expensive
MOH London
28CA7764F · Oct 21
$16,236 NZD
£7,087 GBP
View
Price last confirmed 16 days ago
26 more retailers have this diamond
Prices start from $3,647 NZDSave up to $2,215 NZD

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
$3,647 NZD