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Radiant|Natural|GIA

1.51ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 1565108785

Certificate GIA 1565108785

Diamond specifications and retailer prices

From $6,035 AUD
£3,338 GBP
As of November 1, 2026
Save $5,124 AUD (46%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,160 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565108785. Listed at 6 retailers as of October 30, 2026, with prices from $6,035 to $11,160, a $5,124 spread on the same certified stone. NZ Jewellers lists it at $11,160. 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

1.51
Carat
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle52.28°
Pavilion angle35.08°
OriginNatural
Grading LabGIA
CertificateGIA 1565108785
Dimensions7.68 × 5.71 × 3.76 mm
L/W Ratio1.35
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Indented Natural, Needle, Natural
Top View
7.68 mm5.71 mm1.51 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1565108785
Side View
Table 73.0%Crown 52.28°Girdle: THI-POLPavilion 35.08°Culet: NoneDepth 65.9%

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 1
Current: $11,160 AUD|Low: $6,033 AUD|High: $11,609 AUD|Avg: $8,013 AUD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2$6,035 AUD
Retailer 4$6,378 AUD
Retailer 5$6,405 AUD
Retailer 6$6,405 AUD
Retailer 3$10,257 AUD
NZ Jewellers$11,160 AUD

31 data points across 6 retailers

6 retailers$6,035 AUD to $11,160 AUD

A
Cheapest Retailer
-
$6,035 AUD
£3,338 GBP
A
Retailer 2
-
$6,378 AUD
$4,480 USD
View
A
Retailer 3
-
$6,405 AUD
$4,499 USD
View
A
Retailer 4
-
$6,405 AUD
$4,499 USD
View
B+
Retailer 5
-
$10,257 AUD
£5,673 GBP
View
Most Expensive
B+
NZ Jewellers
ed1fcc82-bf66-4e54-bc01-dde04d15958a · Oct 30
$11,160 AUD
$7,839 USD
View
5 more retailers have this diamond
Prices start from $6,035 AUDSave up to $5,124 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
1.51ct Radiant
$6,035 AUD