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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 $3,002 SGD
As of November 6, 2026
Save $2,497 SGD (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,413 SGD 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: $6,413 SGD|Low: $2,749 SGD|High: $6,455 SGD|Avg: $4,124 SGD|+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$3,002 SGD
Retailer 4$3,025 SGD
Retailer 5$3,455 SGD
Retailer 6$3,746 SGD
Retailer 2$4,037 SGD
Retailer 8$4,428 SGD
Retailer 3$4,441 SGD
Retailer 9$4,538 SGD
MOH London$6,413 SGD

42 data points across 9 retailers

19 retailers$3,002 SGD to $5,498 SGD

A
Cheapest Retailer
-
$3,002 SGD
A
Retailer 2
-
$3,025 SGD
View
Final sale: no returns
A
Retailer 3
-
$3,095 SGD
View
A
Retailer 4
-
$3,107 SGD
View
A
Retailer 5
-
$3,260 SGD
View
Retailer 6
-
$3,455 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,746 SGD
View
B+
Retailer 8
-
$3,749 SGD
View
B+
Retailer 9
-
$3,749 SGD
View
B+
Retailer 10
-
$3,778 SGD
View
B+
Retailer 11
-
$3,947 SGD
View
B+
Retailer 12
-
$3,947 SGD
View
B+
Retailer 13
-
$4,037 SGD
View
B+
Retailer 14
-
$4,075 SGD
View
Retailer 15
-
$4,428 SGD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$4,441 SGD
View
B+
Retailer 17
-
$4,624 SGD
View
B
Retailer 18
-
$5,498 SGD
View
Most Expensive
MOH London
D538187AC · Oct 29
$6,413 SGD
£3,940 GBP
View
Price last confirmed 8 days ago
18 more retailers have this diamond
Prices start from $3,002 SGDSave up to $2,497 SGD

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
$3,002 SGD