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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 5191772192

Certificate GIA 5191772192

Diamond specifications and retailer prices

From $12,383 NZD
$6,979 USD
As of November 1, 2026
Save $14,276 NZD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $26,659 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 5191772192. Listed at 17 retailers as of October 30, 2026, with prices from $12,383 to $26,659, a $14,276 spread on the same certified stone. NZ Jewellers lists it at $26,659. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5191772192
Dimensions8.32 × 6.30 × 4.04 mm
L/W Ratio1.32
Top View
8.32 mm6.30 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5191772192
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.0%

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: $26,659 NZD|Low: $11,897 NZD|High: $26,659 NZD|Avg: $16,592 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$11,897 NZD
Retailer 9$13,330 NZD
Retailer 10$13,440 NZD
Retailer 8$14,441 NZD
Retailer 6$14,663 NZD
Retailer 3$14,740 NZD
Retailer 2$16,514 NZD
Retailer 7$16,662 NZD
Retailer 4$22,214 NZD
NZ Jewellers$26,659 NZD

40 data points across 10 retailers

17 retailers$12,383 NZD to $26,659 NZD

Retailer 1
-
$11,897 NZD
$6,705 USD
Price last confirmed 14 days ago
B
Retailer 2
-
$12,383 NZD
$6,979 USD
View
B
Retailer 3
-
$12,480 NZD
$7,034 USD
View
B
Retailer 4
-
$13,181 NZD
CA$10,318 CAD
View
B
Retailer 5
-
$13,330 NZD
$7,513 USD
View
B
Retailer 6
-
$13,440 NZD
$7,575 USD
View
B
Retailer 7
-
$14,441 NZD
$8,139 USD
View
B
Retailer 8
-
$14,663 NZD
$8,264 USD
View
B
Retailer 9
-
$14,740 NZD
£6,541 GBP
View
B
Retailer 10
-
$15,291 NZD
$8,618 USD
View
B
Retailer 11
-
$15,862 NZD
$8,940 USD
View
B
Retailer 12
-
$15,862 NZD
$8,940 USD
View
B
Retailer 13
-
$16,395 NZD
$9,240 USD
View
B
Retailer 14
-
$16,514 NZD
€8,864 EUR
View
B
Retailer 15
-
$16,662 NZD
$9,391 USD
View
B
Retailer 16
-
$22,214 NZD
£9,858 GBP
View
Most Expensive
C
NZ Jewellers
bd484194-bca1-4374-82ec-2cb948e1cde1 · Oct 30
$26,659 NZD
$15,025 USD
View
16 more retailers have this diamond
Prices start from $12,383 NZDSave up to $14,276 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
$12,383 NZD