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Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5563520590

Certificate GIA 5563520590

Diamond specifications and retailer prices

From $6,432 AUD
HK$35,300 HKD
As of November 1, 2026
Save $7,937 AUD (55%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $14,370 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563520590. Listed at 24 retailers as of October 30, 2026, with prices from $6,432 to $14,370, a $7,937 spread on the same certified stone. NZ Jewellers lists it at $14,370. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.1°
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 5563520590
Dimensions9.02 × 6.54 × 4.11 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Top View
9.02 mm6.54 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5563520590
Side View
Table 62.0%Crown 36.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $14,370 AUD|Low: $6,232 AUD|High: $18,968 AUD|Avg: $8,371 AUD|+1.4%
NZ Jewellers
Retailer 2
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Retailer 13
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Retailer 22
Retailer 23
Retailer 24
November 2, 2026
Retailer 22$6,432 AUD
Retailer 15$6,470 AUD
Retailer 16$6,483 AUD
Retailer 20$6,601 AUD
Retailer 14$6,662 AUD
Retailer 6$6,788 AUD
Retailer 4$6,932 AUD
Retailer 9$7,185 AUD
Retailer 10$7,619 AUD
Retailer 11$7,619 AUD
Retailer 19$7,783 AUD
Retailer 17$8,000 AUD
Retailer 23$8,153 AUD
Retailer 13$8,324 AUD
Retailer 2$8,380 AUD
Retailer 5$8,698 AUD
Retailer 7$8,698 AUD
Retailer 3$8,981 AUD
Retailer 8$8,983 AUD
Retailer 12$9,276 AUD
Retailer 24$9,389 AUD
Retailer 21$9,831 AUD
Retailer 18$12,658 AUD
NZ Jewellers$14,370 AUD

15 data points across 24 retailers

24 retailers$6,432 AUD to $14,370 AUD

A
Cheapest Retailer
-
$6,432 AUD
HK$35,300 HKD
A
Retailer 2
-
$6,470 AUD
$4,545 USD
View
Retailer 3
-
$6,483 AUD
₹433,691 INR
View
Price last confirmed 17 days ago
A
Retailer 4
-
$6,601 AUD
$4,637 USD
View
A
Retailer 5
-
$6,662 AUD
$4,680 USD
View
A
Retailer 6
-
$6,788 AUD
$4,768 USD
View
A
Retailer 7
-
$6,932 AUD
$4,869 USD
View
A
Retailer 8
-
$7,185 AUD
$5,047 USD
View
Final sale: no returns
A
Retailer 9
-
$7,619 AUD
$5,352 USD
View
A
Retailer 10
-
$7,619 AUD
$5,352 USD
View
A
Retailer 11
-
$7,783 AUD
$5,467 USD
View
Retailer 12
-
$8,000 AUD
SGD 7,594 SGD
View
Price last confirmed 18 days ago
A
Retailer 13
-
$8,153 AUD
$5,727 USD
View
A
Retailer 14
-
$8,324 AUD
£4,604 GBP
View
A
Retailer 15
-
$8,380 AUD
£4,635 GBP
View
B+
Retailer 16
-
$8,526 AUD
$5,989 USD
View
A
Retailer 17
-
$8,698 AUD
$6,110 USD
View
B+
Retailer 18
-
$8,698 AUD
$6,110 USD
View
B+
Retailer 19
-
$8,981 AUD
$6,309 USD
View
B+
Retailer 20
-
$8,983 AUD
$6,310 USD
View
B+
Retailer 21
-
$9,389 AUD
€6,281 EUR
View
B+
Retailer 22
-
$9,831 AUD
$6,906 USD
View
B+
Retailer 23
-
$12,658 AUD
£7,001 GBP
View
Most Expensive
B
NZ Jewellers
cd12658d-d5f9-4cf2-88fb-76e01f14db34 · Oct 30
$14,370 AUD
$10,094 USD
View
23 more retailers have this diamond
Prices start from $6,432 AUDSave up to $7,937 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.

A
1.51ct Oval
$6,432 AUD