Round|Natural|GIA

1.02ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2518108397

Certificate GIA 2518108397

Diamond specifications and retailer prices

From $3,739 NZD
As of November 6, 2026
Save $5,100 NZD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,839 NZD 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 5, 2026, with prices from $3,739 to $8,839, a $5,100 spread on the same certified stone. NZ Jewellers lists it at $8,839. 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 6
Current: $5,239 NZD|Low: $3,252 NZD|High: $7,495 NZD|Avg: $4,884 NZD|+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$3,739 NZD
Retailer 6$3,904 NZD
Retailer 5$3,914 NZD
Retailer 8$4,423 NZD
Retailer 3$4,567 NZD
Retailer 2$5,161 NZD
Retailer 7$5,204 NZD
Retailer 1$5,239 NZD
Retailer 4$7,387 NZD

44 data points across 9 retailers

18 retailers$3,739 NZD to $8,839 NZD

A
Cheapest Retailer
-
$3,739 NZD
A
Retailer 2
-
$3,819 NZD
View
B+
Retailer 3
-
$3,904 NZD
View
Final sale: no returns
A
Retailer 4
-
$3,914 NZD
View
B+
Retailer 5
-
$4,221 NZD
View
Retailer 6
-
$4,228 NZD
View
Price last confirmed 60 days ago
Retailer 7
-
$4,228 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$4,228 NZD
View
B+
Retailer 9
-
$4,423 NZD
View
B+
Retailer 10
-
$4,479 NZD
View
B+
Retailer 11
-
$4,567 NZD
View
Retailer 12
-
$4,880 NZD
View
Price last confirmed 60 days ago
B+
Retailer 13
-
$4,880 NZD
View
B+
Retailer 14
-
$5,161 NZD
View
Retailer 15
-
$5,204 NZD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$5,239 NZD
View
B
Retailer 17
-
$7,387 NZD
View
Most Expensive
B
NZ Jewellers
e18a236a-74eb-4954-adfb-8ae465e80a09 · Nov 5
$8,839 NZD
$4,900 USD
View
17 more retailers have this diamond
Prices start from $3,739 NZDSave up to $5,100 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
1.02ct Round
$3,739 NZD