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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 1423043483

Certificate GIA 1423043483

Diamond specifications and retailer prices

From $14,038 NZD
$7,912 USD
As of November 1, 2026
Save $11,086 NZD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $25,124 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval 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 1423043483. Listed at 17 retailers as of October 30, 2026, with prices from $14,038 to $25,124, a $11,086 spread on the same certified stone. NZ Jewellers lists it at $25,124. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1423043483
Dimensions9.55 × 6.18 × 3.90 mm
L/W Ratio1.55
Top View
9.55 mm6.18 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1423043483
Side View
Table 66.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.2%

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: $25,124 NZD|Low: $13,431 NZD|High: $25,124 NZD|Avg: $18,392 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$13,431 NZD
Retailer 10$15,074 NZD
Retailer 11$15,337 NZD
Retailer 9$16,331 NZD
Retailer 5$16,474 NZD
Retailer 7$16,581 NZD
Retailer 4$18,671 NZD
Retailer 8$18,843 NZD
Retailer 3$21,488 NZD
Retailer 2$23,543 NZD
NZ Jewellers$25,124 NZD

40 data points across 11 retailers

17 retailers$14,038 NZD to $25,124 NZD

Retailer 1
-
$13,431 NZD
$7,570 USD
Price last confirmed 14 days ago
B
Retailer 2
-
$14,038 NZD
$7,912 USD
View
B
Retailer 3
-
$14,113 NZD
$7,954 USD
View
B
Retailer 4
-
$14,709 NZD
CA$11,514 CAD
View
B
Retailer 5
-
$15,074 NZD
$8,496 USD
View
B
Retailer 6
-
$15,337 NZD
$8,644 USD
View
B
Retailer 7
-
$16,331 NZD
$9,204 USD
View
B
Retailer 8
-
$16,474 NZD
£7,311 GBP
View
B
Retailer 9
-
$16,581 NZD
$9,345 USD
View
B
Retailer 10
-
$17,342 NZD
$9,774 USD
View
B
Retailer 11
-
$17,832 NZD
$10,050 USD
View
B
Retailer 12
-
$17,832 NZD
$10,050 USD
View
B
Retailer 13
-
$18,417 NZD
$10,380 USD
View
B
Retailer 14
-
$18,671 NZD
€10,022 EUR
View
B
Retailer 15
-
$18,843 NZD
$10,620 USD
View
B
Retailer 16
-
$23,543 NZD
£10,448 GBP
View
Most Expensive
C
NZ Jewellers
7705be8d-1a12-473f-a572-c8bb65c06c3f · Oct 30
$25,124 NZD
$14,160 USD
View
16 more retailers have this diamond
Prices start from $14,038 NZDSave up to $11,086 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 Oval
$14,038 NZD