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Round|Natural|GIA

1.02ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2518108397

Certificate GIA 2518108397

Diamond specifications and retailer prices

From $2,961 AUD
As of November 4, 2026
Save $4,038 AUD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,000 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2518108397. Listed at 18 retailers as of November 4, 2026, with prices from $2,961 to $7,000, a $4,038 spread on the same certified stone. NZ Jewellers lists it at $7,000. 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

1.02
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2518108397
Dimensions6.37 × 6.33 × 4.03 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
6.37 mm6.33 mm1.02 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2518108397
Side View
Table 57.0%Crown 36°Girdle: STK-THKPavilion 41°Culet: NoneDepth 63.4%

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 4
Current: $4,148 AUD|Low: $2,576 AUD|High: $5,935 AUD|Avg: $3,868 AUD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9$2,961 AUD
Retailer 6$3,091 AUD
Retailer 5$3,100 AUD
Retailer 8$3,503 AUD
Retailer 3$3,617 AUD
Retailer 2$4,087 AUD
Retailer 7$4,121 AUD
Retailer 1$4,148 AUD
Retailer 4$5,850 AUD

44 data points across 9 retailers

18 retailers$2,961 AUD to $7,000 AUD

A
Cheapest Retailer
-
$2,961 AUD
A
Retailer 2
-
$3,024 AUD
View
B+
Retailer 3
-
$3,091 AUD
View
Final sale: no returns
A
Retailer 4
-
$3,100 AUD
View
B+
Retailer 5
-
$3,343 AUD
View
Retailer 6
-
$3,348 AUD
View
Price last confirmed 60 days ago
Retailer 7
-
$3,348 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,348 AUD
View
B+
Retailer 9
-
$3,503 AUD
View
B+
Retailer 10
-
$3,547 AUD
View
B+
Retailer 11
-
$3,617 AUD
View
Retailer 12
-
$3,864 AUD
View
Price last confirmed 60 days ago
B+
Retailer 13
-
$3,864 AUD
View
B+
Retailer 14
-
$4,087 AUD
View
Retailer 15
-
$4,121 AUD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$4,148 AUD
View
B
Retailer 17
-
$5,850 AUD
View
Most Expensive
B
NZ Jewellers
e18a236a-74eb-4954-adfb-8ae465e80a09 · Nov 5
$7,000 AUD
$4,900 USD
View
17 more retailers have this diamond
Prices start from $2,961 AUDSave up to $4,038 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.

A
1.02ct Round
$2,961 AUD