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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 $9,935 AUD
$6,979 USD
As of November 1, 2026
Save $11,454 AUD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $21,390 AUD 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 $9,935 to $21,390, a $11,454 spread on the same certified stone. NZ Jewellers lists it at $21,390. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $21,390 AUD|Low: $9,545 AUD|High: $21,390 AUD|Avg: $13,500 AUD
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$9,545 AUD
Retailer 10$10,696 AUD
Retailer 11$10,784 AUD
Retailer 9$11,587 AUD
Retailer 7$11,765 AUD
Retailer 4$11,826 AUD
Retailer 5$13,209 AUD
Retailer 8$13,369 AUD
Retailer 3$15,246 AUD
Retailer 2$17,823 AUD
NZ Jewellers$21,390 AUD

39 data points across 11 retailers

17 retailers$9,935 AUD to $21,390 AUD

Retailer 1
-
$9,545 AUD
$6,705 USD
Price last confirmed 14 days ago
B
Retailer 2
-
$9,935 AUD
$6,979 USD
View
B
Retailer 3
-
$10,014 AUD
$7,034 USD
View
B
Retailer 4
-
$10,576 AUD
CA$10,318 CAD
View
B
Retailer 5
-
$10,696 AUD
$7,513 USD
View
B
Retailer 6
-
$10,784 AUD
$7,575 USD
View
B
Retailer 7
-
$11,587 AUD
$8,139 USD
View
B
Retailer 8
-
$11,765 AUD
$8,264 USD
View
B
Retailer 9
-
$11,826 AUD
£6,541 GBP
View
B
Retailer 10
-
$12,269 AUD
$8,618 USD
View
B
Retailer 11
-
$12,727 AUD
$8,940 USD
View
B
Retailer 12
-
$12,727 AUD
$8,940 USD
View
B
Retailer 13
-
$13,154 AUD
$9,240 USD
View
B
Retailer 14
-
$13,209 AUD
€8,837 EUR
View
B
Retailer 15
-
$13,369 AUD
$9,391 USD
View
B
Retailer 16
-
$17,823 AUD
£9,858 GBP
View
Most Expensive
C
NZ Jewellers
bd484194-bca1-4374-82ec-2cb948e1cde1 · Oct 30
$21,390 AUD
$15,025 USD
View
16 more retailers have this diamond
Prices start from $9,935 AUDSave up to $11,454 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 Oval
$9,935 AUD