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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1567578478

Certificate GIA 1567578478

Diamond specifications and retailer prices

From $3,447 NZD
As of November 5, 2026
Save $3,217 NZD (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,664 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D 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 1567578478. Listed at 10 retailers as of November 4, 2026, with prices from $3,447 to $6,664, a $3,217 spread on the same certified stone. MOH London lists it at $6,664. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1567578478
Dimensions5.52 × 5.47 × 3.62 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Pinpoint, Indented Natural
Top View
5.52 mm5.47 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1567578478
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NDepth 66.2%

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: $6,664 NZD|Low: $3,447 NZD|High: $6,719 NZD|Avg: $4,321 NZD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10$3,447 NZD
Retailer 4$3,700 NZD
Retailer 7$3,707 NZD
Retailer 9$3,860 NZD
Retailer 3$4,073 NZD
Retailer 2$4,144 NZD
Retailer 8$4,207 NZD
Retailer 6$4,656 NZD
Retailer 5$4,851 NZD
MOH London$6,664 NZD

16 data points across 10 retailers

10 retailers$3,447 NZD to $6,664 NZD

A
Cheapest Retailer
-
$3,447 NZD
A
Retailer 2
-
$3,700 NZD
View
A
Retailer 3
-
$3,707 NZD
View
A
Retailer 4
-
$3,860 NZD
View
A
Retailer 5
-
$4,073 NZD
View
A
Retailer 6
-
$4,144 NZD
View
A
Retailer 7
-
$4,207 NZD
View
A
Retailer 8
-
$4,656 NZD
View
B+
Retailer 9
-
$4,851 NZD
View
Most Expensive
B+
MOH London
456773F2E · Nov 4
$6,664 NZD
£2,909 GBP
View
9 more retailers have this diamond
Prices start from $3,447 NZDSave up to $3,217 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 Radiant
$3,447 NZD