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Radiant|Natural|GIA

1.02ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6551745420

Certificate GIA 6551745420

Diamond specifications and retailer prices

From $4,352 NZD
$2,444 USD
As of October 29, 2026
Save $5,112 NZD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,463 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551745420. Listed at 9 retailers as of October 27, 2026, with prices from $4,352 to $9,463, a $5,112 spread on the same certified stone. NZ Jewellers lists it at $9,463. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.68°
Pavilion angle36.82°
OriginNatural
Grading LabGIA
CertificateGIA 6551745420
Dimensions6.57 × 5.06 × 3.43 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Pinpoint
Top View
6.57 mm5.06 mm1.02 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551745420
Side View
Table 73.0%Crown 51.68°GirdlePavilion 36.82°Culet: NoneDepth 67.7%

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: Oct 29
Current: $9,463 NZD|Low: $4,341 NZD|High: $9,556 NZD|Avg: $5,717 NZD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6$4,352 NZD
Retailer 2$4,429 NZD
Retailer 8$4,526 NZD
Retailer 3$4,701 NZD
Retailer 7$4,701 NZD
Retailer 5$4,736 NZD
Retailer 9$5,097 NZD
Retailer 4$7,941 NZD
NZ Jewellers$9,463 NZD

35 data points across 9 retailers

9 retailers$4,352 NZD to $9,463 NZD

A
Cheapest Retailer
-
$4,352 NZD
$2,444 USD
A
Retailer 2
-
$4,429 NZD
£1,959 GBP
View
A
Retailer 3
-
$4,526 NZD
$2,542 USD
View
A
Retailer 4
-
$4,701 NZD
$2,640 USD
View
A
Retailer 5
-
$4,701 NZD
$2,640 USD
View
A
Retailer 6
-
$4,736 NZD
$2,660 USD
View
Retailer 7
-
$5,097 NZD
A$4,404 AUD
View
Price last confirmed 22 days ago
B
Retailer 8
-
$7,941 NZD
£3,512 GBP
View
Most Expensive
B
NZ Jewellers
bb6f3a46-66b6-4e71-a01a-43b9183a67b1 · Oct 27
$9,463 NZD
$5,315 USD
View
8 more retailers have this diamond
Prices start from $4,352 NZDSave up to $5,112 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 Radiant
$4,352 NZD