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Round|Natural|GIA

1.01ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 1236390802

Certificate GIA 1236390802

Diamond specifications and retailer prices

From $2,268 AUD
As of November 4, 2026
Save $4,561 AUD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,830 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1236390802. Listed at 15 retailers as of November 4, 2026, with prices from $2,268 to $6,830, a $4,561 spread on the same certified stone. NZ Jewellers lists it at $6,830. 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

1.01
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1236390802
Dimensions6.32 × 6.25 × 4.04 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1236390802, HRD Antwerp 220000014950
Top View
6.32 mm6.25 mm1.01 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1236390802
Side View
Table 58.0%Crown 36°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,830 AUD|Low: $2,268 AUD|High: $6,830 AUD|Avg: $3,379 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$2,268 AUD
Retailer 8$2,311 AUD
Retailer 9$2,371 AUD
Retailer 4$2,537 AUD
Retailer 12$2,537 AUD
Retailer 10$2,654 AUD
Retailer 3$2,927 AUD
Retailer 2$3,004 AUD
Retailer 5$3,293 AUD
Retailer 6$3,547 AUD
Retailer 7$4,893 AUD
NZ Jewellers$6,830 AUD

41 data points across 12 retailers

15 retailers$2,268 AUD to $6,830 AUD

B+
Cheapest Retailer
-
$2,268 AUD
B+
Retailer 2
-
$2,283 AUD
View
B+
Retailer 3
-
$2,311 AUD
View
B+
Retailer 4
-
$2,371 AUD
View
B+
Retailer 5
-
$2,381 AUD
View
B+
Retailer 6
-
$2,468 AUD
View
B+
Retailer 7
-
$2,537 AUD
View
Retailer 8
-
$2,537 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,654 AUD
View
B+
Retailer 10
-
$2,927 AUD
View
B+
Retailer 11
-
$3,004 AUD
View
B
Retailer 12
-
$3,293 AUD
View
B
Retailer 13
-
$3,547 AUD
View
B
Retailer 14
-
$4,893 AUD
View
Most Expensive
C
NZ Jewellers
5aa44d12-82cf-4380-96fc-42675d74002c · Nov 5
$6,830 AUD
$4,781 USD
View
14 more retailers have this diamond
Prices start from $2,268 AUDSave up to $4,561 AUD

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+
1.01ct Round
$2,268 AUD