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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 $15,311 NZD
$8,615 USD
As of October 28, 2026
Save $12,535 NZD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $27,847 NZD 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 $15,311 to $27,847, a $12,535 spread on the same certified stone. NZ Jewellers lists it at $27,847. 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

How it works →
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: $27,847 NZD|Low: $15,311 NZD|High: $27,847 NZD|Avg: $19,693 NZD
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$15,311 NZD
Retailer 5$15,642 NZD
Retailer 8$15,658 NZD
Retailer 13$16,708 NZD
Retailer 15$18,100 NZD
Retailer 6$18,148 NZD
Retailer 7$18,224 NZD
Retailer 10$18,287 NZD
Retailer 3$18,378 NZD
Retailer 14$18,379 NZD
Retailer 9$18,826 NZD
Retailer 16$20,885 NZD
Retailer 12$21,052 NZD
Retailer 11$24,546 NZD
Retailer 2$26,093 NZD
NZ Jewellers$27,847 NZD

31 data points across 16 retailers

21 retailers$15,311 NZD to $27,847 NZD

B
Cheapest Retailer
-
$15,311 NZD
$8,615 USD
B
Retailer 2
-
$15,642 NZD
$8,801 USD
View
B
Retailer 3
-
$15,658 NZD
$8,810 USD
View
B
Retailer 4
-
$16,708 NZD
$9,401 USD
View
B
Retailer 5
-
$17,817 NZD
$10,025 USD
View
B
Retailer 6
-
$18,100 NZD
$10,184 USD
View
Retailer 7
-
$18,148 NZD
$10,211 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$18,224 NZD
$10,254 USD
View
B
Retailer 9
-
$18,287 NZD
£8,102 GBP
View
Retailer 10
-
$18,378 NZD
A$15,908 AUD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$18,379 NZD
$10,341 USD
View
B
Retailer 12
-
$18,826 NZD
£8,341 GBP
View
B
Retailer 13
-
$19,284 NZD
$10,850 USD
View
B
Retailer 14
-
$19,284 NZD
$10,850 USD
View
B
Retailer 15
-
$19,924 NZD
$11,210 USD
View
B
Retailer 16
-
$20,885 NZD
$11,751 USD
View
B
Retailer 17
-
$21,052 NZD
€11,281 EUR
View
Retailer 18
-
$21,987 NZD
$12,371 USD
View
Price last confirmed 10 days ago
C
Retailer 19
-
$24,546 NZD
ZAR 223,113 ZAR
View
C
Retailer 20
-
$26,093 NZD
£11,560 GBP
View
Most Expensive
C
NZ Jewellers
10b842fd-9c3b-4b5f-bd6e-a7dedb7deb74 · Oct 30
$27,847 NZD
$15,668 USD
View
20 more retailers have this diamond
Prices start from $15,311 NZDSave up to $12,535 NZD

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
$15,311 NZD