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Radiant|Natural|GIA

1.51ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 5403884550

Certificate GIA 5403884550

Diamond specifications and retailer prices

From $13,079 AUD
£7,234 GBP
As of November 1, 2026
Save $6,220 AUD (32%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $19,298 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5403884550. Listed at 4 retailers as of November 1, 2026, with prices from $13,079 to $19,298, a $6,220 spread on the same certified stone. MOH London lists it at $19,298. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5403884550
Dimensions6.98 × 5.57 × 4.05 mm
L/W Ratio1.25
Top View
6.98 mm5.57 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5403884550
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $19,298 AUD|Low: $11,951 AUD|High: $19,530 AUD|Avg: $14,346 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4$11,951 AUD
Retailer 5$12,052 AUD
Retailer 2$13,079 AUD
Retailer 3$15,426 AUD
MOH London$19,298 AUD

42 data points across 5 retailers

4 retailers$13,079 AUD to $19,298 AUD

Retailer 1
-
$11,951 AUD
$8,395 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
$13,079 AUD
£7,234 GBP
View
B
Retailer 3
-
$15,426 AUD
€10,320 EUR
View
Most Expensive
B
MOH London
E3B279CFC · Nov 1
$19,298 AUD
£10,674 GBP
View
3 more retailers have this diamond
Prices start from $13,079 AUDSave up to $6,220 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.

B+
1.51ct Radiant
$13,079 AUD