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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 1553246271

Certificate GIA 1553246271

Diamond specifications and retailer prices

From $8,956 AUD
$6,291 USD
As of November 1, 2026
Save $10,002 AUD (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $18,958 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553246271. Listed at 25 retailers as of October 30, 2026, with prices from $8,956 to $18,958, a $10,002 spread on the same certified stone. NZ Jewellers lists it at $18,958. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.39°
Pavilion angle40.95°
OriginNatural
Grading LabGIA
CertificateGIA 1553246271
Dimensions8.68 × 6.33 × 4.09 mm
L/W Ratio1.37
Culet sizeNone
Top View
8.68 mm6.33 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553246271
Side View
Table 61.0%Crown 40.39°Girdle: MED-THKPavilion 40.95°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,958 AUD|Low: $9,030 AUD|High: $18,958 AUD|Avg: $11,771 AUD
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 9$9,030 AUD
Retailer 6$9,478 AUD
Retailer 18$9,478 AUD
Retailer 12$9,495 AUD
Retailer 11$10,214 AUD
Retailer 20$10,268 AUD
Retailer 19$10,426 AUD
Retailer 2$10,680 AUD
Retailer 14$10,688 AUD
Retailer 4$10,869 AUD
Retailer 3$10,931 AUD
Retailer 8$10,933 AUD
Retailer 10$10,933 AUD
Retailer 7$11,303 AUD
Retailer 5$11,849 AUD
Retailer 13$12,383 AUD
Retailer 16$13,925 AUD
Retailer 15$15,796 AUD
Retailer 17$16,028 AUD
NZ Jewellers$18,958 AUD

31 data points across 20 retailers

25 retailers$8,956 AUD to $18,958 AUD

B+
Cheapest Retailer
-
$8,956 AUD
$6,291 USD
B+
Retailer 2
-
$9,030 AUD
$6,343 USD
View
B+
Retailer 3
-
$9,478 AUD
$6,658 USD
View
B+
Retailer 4
-
$9,478 AUD
$6,658 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,495 AUD
$6,670 USD
View
B+
Retailer 6
-
$9,645 AUD
$6,775 USD
View
B+
Retailer 7
-
$10,092 AUD
$7,089 USD
View
B+
Retailer 8
-
$10,214 AUD
$7,175 USD
View
B+
Retailer 9
-
$10,268 AUD
$7,213 USD
View
B+
Retailer 10
-
$10,426 AUD
$7,324 USD
View
B+
Retailer 11
-
$10,680 AUD
£5,907 GBP
View
B+
Retailer 12
-
$10,688 AUD
£5,912 GBP
View
B+
Retailer 13
-
$10,869 AUD
$7,635 USD
View
Retailer 14
-
$10,931 AUD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
$10,933 AUD
$7,680 USD
View
B+
Retailer 16
-
$10,933 AUD
$7,680 USD
View
B+
Retailer 17
-
$11,303 AUD
$7,940 USD
View
B
Retailer 18
-
$11,484 AUD
$8,067 USD
View
B
Retailer 19
-
$11,849 AUD
$8,323 USD
View
Retailer 20
-
$11,849 AUD
$8,323 USD
View
Price last confirmed 24 days ago
B
Retailer 21
-
$12,383 AUD
€8,284 EUR
View
B
Retailer 22
-
$13,925 AUD
ZAR 158,021 ZAR
View
B
Retailer 23
-
$15,796 AUD
£8,737 GBP
View
B
Retailer 24
-
$16,028 AUD
£8,865 GBP
View
Most Expensive
B
NZ Jewellers
618cd255-7f3c-4802-b001-fe4b8bd1c12f · Oct 30
$18,958 AUD
$13,317 USD
View
24 more retailers have this diamond
Prices start from $8,956 AUDSave up to $10,002 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
$8,956 AUD