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Oval|Natural|GIA

1.51ct G SI1 Oval Natural Diamond

ID • G/SI1 • GIA 6561710288

Certificate GIA 6561710288

Diamond specifications and retailer prices

From $9,223 AUD
HK$50,500 HKD
As of November 1, 2026
Save $11,469 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $20,693 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561710288. Listed at 19 retailers as of October 30, 2026, with prices from $9,223 to $20,693, a $11,469 spread on the same certified stone. NZ Jewellers lists it at $20,693. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle40.2°
Pavilion angle38.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561710288
Dimensions9.20 × 6.27 × 4.02 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Top View
9.20 mm6.27 mm1.51 ctG / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561710288
Side View
Table 62.0%Crown 40.2°Girdle: MED-THKPavilion 38.4°Culet: NoneDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $20,693 AUD|Low: $8,968 AUD|High: $20,693 AUD|Avg: $12,473 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
November 2, 2026
Retailer 5$9,223 AUD
Retailer 15$9,450 AUD
Retailer 9$9,637 AUD
Retailer 8$10,763 AUD
Retailer 14$11,027 AUD
Retailer 3$11,101 AUD
Retailer 10$11,244 AUD
Retailer 17$11,372 AUD
Retailer 12$11,421 AUD
Retailer 13$11,433 AUD
Retailer 18$12,373 AUD
Retailer 11$12,416 AUD
Retailer 6$12,724 AUD
Retailer 2$12,807 AUD
Retailer 4$13,797 AUD
Retailer 7$14,276 AUD
Retailer 19$15,200 AUD
Retailer 16$17,243 AUD
NZ Jewellers$20,693 AUD

7 data points across 19 retailers

19 retailers$9,223 AUD to $20,693 AUD

A
Cheapest Retailer
-
$9,223 AUD
HK$50,500 HKD
A
Retailer 2
-
$9,450 AUD
₹630,733 INR
View
B+
Retailer 3
-
$9,637 AUD
View
B+
Retailer 4
-
$10,763 AUD
$7,543 USD
View
B+
Retailer 5
-
$11,027 AUD
$7,728 USD
View
B+
Retailer 6
-
$11,101 AUD
$7,780 USD
View
B+
Retailer 7
-
$11,244 AUD
$7,880 USD
View
B+
Retailer 8
-
$11,372 AUD
$7,970 USD
View
B+
Retailer 9
-
$11,421 AUD
$8,004 USD
View
Final sale: no returns
B+
Retailer 10
-
$11,433 AUD
£6,309 GBP
View
B
Retailer 11
-
$12,373 AUD
$8,671 USD
View
B
Retailer 12
-
$12,416 AUD
$8,702 USD
View
B+
Retailer 13
-
$12,724 AUD
$8,917 USD
View
B+
Retailer 14
-
$12,807 AUD
€8,548 EUR
View
B
Retailer 15
-
$13,797 AUD
$9,669 USD
View
B
Retailer 16
-
$14,276 AUD
$10,005 USD
View
B
Retailer 17
-
$15,200 AUD
ZAR 172,087 ZAR
View
B
Retailer 18
-
$17,243 AUD
£9,515 GBP
View
Most Expensive
B
NZ Jewellers
05ae28cb-bff9-4b6e-a333-6746b85dc833 · Oct 30
$20,693 AUD
$14,502 USD
View
18 more retailers have this diamond
Prices start from $9,223 AUDSave up to $11,469 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
$9,223 AUD