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Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 5566500832

Certificate GIA 5566500832

Diamond specifications and retailer prices

From $6,520 AUD
HK$35,700 HKD
As of October 30, 2026
Save $8,659 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,179 AUD at NZ Jewellers · As of October 27, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566500832. Listed at 19 retailers as of October 27, 2026, with prices from $6,520 to $15,179, a $8,659 spread on the same certified stone. NZ Jewellers lists it at $15,179. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566500832
Dimensions7.56 × 5.59 × 3.90 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.56 mm5.59 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566500832
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.8%

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: Oct 30
Current: $15,179 AUD|Low: $6,265 AUD|High: $15,548 AUD|Avg: $9,093 AUD|-2.4%
NZ Jewellers
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 5$6,520 AUD
Retailer 21$6,735 AUD
Retailer 3$7,020 AUD
Retailer 9$7,208 AUD
Retailer 19$7,229 AUD
Retailer 4$7,367 AUD
Retailer 2$7,432 AUD
Retailer 8$7,588 AUD
Retailer 15$7,720 AUD
Retailer 6$7,743 AUD
Retailer 7$7,762 AUD
Retailer 14$7,954 AUD
Retailer 13$8,171 AUD
Retailer 11$8,324 AUD
Retailer 17$8,601 AUD
Retailer 16$8,703 AUD
Retailer 20$9,900 AUD
Retailer 10$10,717 AUD
Retailer 18$13,443 AUD
Retailer 12$13,656 AUD
NZ Jewellers$15,179 AUD

15 data points across 21 retailers

19 retailers$6,520 AUD to $15,179 AUD

A
Cheapest Retailer
-
$6,520 AUD
HK$35,700 HKD
A
Retailer 2
-
$6,735 AUD
$4,720 USD
View
A
Retailer 3
-
$7,020 AUD
$4,920 USD
View
A
Retailer 4
-
$7,208 AUD
SGD 6,826 SGD
View
A
Retailer 5
-
$7,229 AUD
$5,066 USD
View
A
Retailer 6
-
$7,367 AUD
$5,163 USD
View
Retailer 7
-
$7,432 AUD
€4,961 EUR
View
Price last confirmed 3 days ago
A
Retailer 8
-
$7,720 AUD
$5,410 USD
View
A
Retailer 9
-
$7,743 AUD
View
A
Retailer 10
-
$7,762 AUD
$5,440 USD
View
Retailer 11
-
$7,954 AUD
$5,574 USD
View
Price last confirmed 15 days ago
A
Retailer 12
-
$8,171 AUD
£4,509 GBP
View
A
Retailer 13
-
$8,601 AUD
£4,746 GBP
View
A
Retailer 14
-
$8,703 AUD
$6,099 USD
View
B+
Retailer 15
-
$9,900 AUD
€6,608 EUR
View
B+
Retailer 16
-
$10,717 AUD
ZAR 121,331 ZAR
View
B+
Retailer 17
-
$13,443 AUD
£7,418 GBP
View
Retailer 18
-
$13,656 AUD
$9,571 USD
View
Price last confirmed 14 days ago
Most Expensive
B
NZ Jewellers
ee3d4bad-e84d-4bc9-bc88-51682b85e7d6 · Oct 27
$15,179 AUD
$10,638 USD
View
18 more retailers have this diamond
Prices start from $6,520 AUDSave up to $8,659 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
$6,520 AUD