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Radiant|Natural|HRD

1.80ct D SI2 Radiant Natural Diamond

EX • D/SI2 • HRD 250000123582

Certificate HRD 250000123582

Diamond specifications and retailer prices

From $6,278 AUD
$4,410 USD
As of October 31, 2026
Save $3,762 AUD (37%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $10,040 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 1.8ct natural radiant diamond

This 1.8ct natural radiant sits in the one-and-a-half to two 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 HRD 250000123582. Listed at 3 retailers as of October 26, 2026, with prices from $6,278 to $10,040, a $3,762 spread on the same certified stone. MOH London lists it at $10,040. 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

1.80
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle31.32°
OriginNatural
Grading LabHRD
CertificateHRD 250000123582
Dimensions7.61 × 5.96 × 4.19 mm
L/W Ratio1.28
Girdle conditionMedium
Top View
7.61 mm5.96 mm1.80 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000123582
Side View
Table 65.0%Crown 44.9°GirdlePavilion 31.32°Culet: NoneDepth 70.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $10,040 AUD|Low: $6,278 AUD|High: $11,024 AUD|Avg: $8,069 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 25, 2026
Retailer 2$6,278 AUD
Retailer 4$6,328 AUD
Retailer 5$6,689 AUD
MOH London$10,040 AUD
Retailer 3$11,024 AUD

11 data points across 5 retailers

3 retailers$6,278 AUD to $10,040 AUD

A
Cheapest Retailer
-
$6,278 AUD
$4,410 USD
Retailer 2
-
$6,328 AUD
$4,445 USD
View
Price last confirmed 39 days ago
Most Expensive
A
MOH London
12C291532 · Oct 26
$10,040 AUD
£5,553 GBP
View
2 more retailers have this diamond
Prices start from $6,278 AUDSave up to $3,762 AUD

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
1.80ct Radiant
$6,278 AUD