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Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 1313613880

Certificate GIA 1313613880

Diamond specifications and retailer prices

From $12,293 AUD
$8,615 USD
As of October 28, 2026
Save $10,064 AUD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $22,357 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1313613880. Listed at 21 retailers as of October 28, 2026, with prices from $12,293 to $22,357, a $10,064 spread on the same certified stone. NZ Jewellers lists it at $22,357. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1313613880
Dimensions7.31 × 6.21 × 4.25 mm
L/W Ratio1.18
Top View
7.31 mm6.21 mm1.51 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1313613880
Side View
Table 74.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $22,357 AUD|Low: $12,293 AUD|High: $22,357 AUD|Avg: $15,811 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 4$12,293 AUD
Retailer 5$12,558 AUD
Retailer 8$12,571 AUD
Retailer 13$13,414 AUD
Retailer 15$14,532 AUD
Retailer 6$14,570 AUD
Retailer 7$14,631 AUD
Retailer 10$14,682 AUD
Retailer 3$14,755 AUD
Retailer 14$14,756 AUD
Retailer 9$15,115 AUD
Retailer 16$16,768 AUD
Retailer 12$16,902 AUD
Retailer 11$19,706 AUD
Retailer 2$20,949 AUD
NZ Jewellers$22,357 AUD

31 data points across 16 retailers

21 retailers$12,293 AUD to $22,357 AUD

B
Cheapest Retailer
-
$12,293 AUD
$8,615 USD
B
Retailer 2
-
$12,558 AUD
$8,801 USD
View
B
Retailer 3
-
$12,571 AUD
$8,810 USD
View
B
Retailer 4
-
$13,414 AUD
$9,401 USD
View
B
Retailer 5
-
$14,304 AUD
$10,025 USD
View
B
Retailer 6
-
$14,532 AUD
$10,184 USD
View
Retailer 7
-
$14,570 AUD
$10,211 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$14,631 AUD
$10,254 USD
View
B
Retailer 9
-
$14,682 AUD
£8,102 GBP
View
Retailer 10
-
$14,755 AUD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$14,756 AUD
$10,341 USD
View
B
Retailer 12
-
$15,115 AUD
£8,341 GBP
View
B
Retailer 13
-
$15,482 AUD
$10,850 USD
View
B
Retailer 14
-
$15,482 AUD
$10,850 USD
View
B
Retailer 15
-
$15,996 AUD
$11,210 USD
View
B
Retailer 16
-
$16,768 AUD
$11,751 USD
View
B
Retailer 17
-
$16,902 AUD
€11,281 EUR
View
Retailer 18
-
$17,652 AUD
$12,371 USD
View
Price last confirmed 10 days ago
C
Retailer 19
-
$19,706 AUD
ZAR 223,113 ZAR
View
C
Retailer 20
-
$20,949 AUD
£11,560 GBP
View
Most Expensive
C
NZ Jewellers
10b842fd-9c3b-4b5f-bd6e-a7dedb7deb74 · Oct 30
$22,357 AUD
$15,668 USD
View
20 more retailers have this diamond
Prices start from $12,293 AUDSave up to $10,064 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
$12,293 AUD