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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 1417166339

Certificate GIA 1417166339

Diamond specifications and retailer prices

From $13,911 NZD
$7,827 USD
As of November 1, 2026
Save $15,971 NZD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $29,882 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1417166339. Listed at 19 retailers as of October 30, 2026, with prices from $13,911 to $29,882, a $15,971 spread on the same certified stone. NZ Jewellers lists it at $29,882. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1417166339
Dimensions7.69 × 6.01 × 4.03 mm
L/W Ratio1.28
Culet sizeNone
Top View
7.69 mm6.01 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1417166339
Side View
Table 73.0%CrownGirdle: ETN-VTKPavilionCulet: NoneDepth 67.0%

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: Nov 1
Current: $29,882 NZD|Low: $13,321 NZD|High: $29,882 NZD|Avg: $18,891 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$13,321 NZD
Retailer 8$14,940 NZD
Retailer 7$16,186 NZD
Retailer 3$16,292 NZD
Retailer 6$16,435 NZD
Retailer 2$18,557 NZD
Retailer 9$18,676 NZD
Retailer 10$19,668 NZD
Retailer 4$23,335 NZD
NZ Jewellers$29,882 NZD

41 data points across 10 retailers

19 retailers$13,911 NZD to $29,882 NZD

Retailer 1
-
$13,321 NZD
$7,495 USD
Price last confirmed 12 days ago
B
Retailer 2
-
$13,911 NZD
$7,827 USD
View
B
Retailer 3
-
$13,966 NZD
A$12,089 AUD
View
B
Retailer 4
-
$13,989 NZD
$7,871 USD
View
B
Retailer 5
-
$14,574 NZD
CA$11,389 CAD
View
B
Retailer 6
-
$14,940 NZD
$8,406 USD
View
B
Retailer 7
-
$16,186 NZD
$9,107 USD
View
B
Retailer 8
-
$16,292 NZD
£7,218 GBP
View
B
Retailer 9
-
$16,435 NZD
$9,247 USD
View
B
Retailer 10
-
$16,591 NZD
$9,335 USD
View
B
Retailer 11
-
$17,185 NZD
$9,669 USD
View
B
Retailer 12
-
$17,666 NZD
$9,940 USD
View
B
Retailer 13
-
$17,666 NZD
$9,940 USD
View
C
Retailer 14
-
$18,271 NZD
$10,280 USD
View
B
Retailer 15
-
$18,557 NZD
€9,944 EUR
View
C
Retailer 16
-
$18,676 NZD
$10,508 USD
View
Retailer 17
-
$19,668 NZD
$11,066 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$23,335 NZD
£10,338 GBP
View
Most Expensive
C
NZ Jewellers
55a9718c-2954-4ea8-9041-f0b92c50128e · Oct 30
$29,882 NZD
$16,813 USD
View
18 more retailers have this diamond
Prices start from $13,911 NZDSave up to $15,971 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
$13,911 NZD