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Radiant|Natural|GIA

1.00ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 1545627178

Certificate GIA 1545627178

Diamond specifications and retailer prices

From $4,225 NZD
As of November 6, 2026
Save $3,514 NZD (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,026 NZD at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545627178. Listed at 19 retailers as of November 6, 2026, with a 83% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545627178
Dimensions6.80 × 4.91 × 3.37 mm
L/W Ratio1.38
Culet sizeNone
Top View
6.80 mm4.91 mm1.00 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1545627178
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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: $9,026 NZD|Low: $3,869 NZD|High: $9,086 NZD|Avg: $5,804 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7$4,225 NZD
Retailer 4$4,257 NZD
Retailer 5$4,863 NZD
Retailer 6$5,273 NZD
Retailer 2$5,682 NZD
Retailer 8$6,232 NZD
Retailer 3$6,251 NZD
Retailer 9$6,388 NZD
MOH London$9,026 NZD

42 data points across 9 retailers

19 retailers$4,225 NZD to $7,739 NZD

A
Cheapest Retailer
-
$4,225 NZD
A
Retailer 2
-
$4,257 NZD
View
Final sale: no returns
A
Retailer 3
-
$4,356 NZD
View
A
Retailer 4
-
$4,373 NZD
View
A
Retailer 5
-
$4,589 NZD
View
Retailer 6
-
$4,863 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$5,273 NZD
View
B+
Retailer 8
-
$5,276 NZD
View
B+
Retailer 9
-
$5,276 NZD
View
B+
Retailer 10
-
$5,318 NZD
View
B+
Retailer 11
-
$5,556 NZD
View
B+
Retailer 12
-
$5,556 NZD
View
B+
Retailer 13
-
$5,682 NZD
View
B+
Retailer 14
-
$5,736 NZD
View
Retailer 15
-
$6,232 NZD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$6,251 NZD
View
B+
Retailer 17
-
$6,508 NZD
View
B
Retailer 18
-
$7,739 NZD
View
Most Expensive
MOH London
D538187AC · Oct 29
$9,026 NZD
£3,940 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $4,225 NZDSave up to $3,514 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
$4,225 NZD