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Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

VG • F/SI2 • GIA 6555422815

Certificate GIA 6555422815

Diamond specifications and retailer prices

From $7,281 AUD
$5,103 USD
As of October 31, 2026
Save $9,861 AUD (58%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $17,143 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555422815. Listed at 24 retailers as of October 30, 2026, with prices from $7,281 to $17,143, a $9,861 spread on the same certified stone. NZ Jewellers lists it at $17,143. 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.7°
Pavilion angle39.1°
OriginNatural
Grading LabGIA
CertificateGIA 6555422815
Dimensions9.36 × 6.27 × 3.96 mm
L/W Ratio1.49
Girdle conditionFaceted
Top View
9.36 mm6.27 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555422815
Side View
Table 63.0%Crown 38.7°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 63.2%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $17,143 AUD|Low: $7,281 AUD|High: $17,655 AUD|Avg: $10,319 AUD|-2.9%
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
Retailer 21
Retailer 22
November 2, 2026
Retailer 8$7,281 AUD
Retailer 18$7,671 AUD
Retailer 6$7,815 AUD
Retailer 11$8,098 AUD
Retailer 15$8,180 AUD
Retailer 9$8,249 AUD
Retailer 7$8,571 AUD
Retailer 20$8,571 AUD
Retailer 5$9,285 AUD
Retailer 22$9,428 AUD
Retailer 3$9,646 AUD
Retailer 2$9,657 AUD
Retailer 16$9,829 AUD
Retailer 10$10,316 AUD
Retailer 12$10,316 AUD
Retailer 13$10,576 AUD
Retailer 14$10,659 AUD
Retailer 19$10,713 AUD
Retailer 4$11,295 AUD
Retailer 21$11,736 AUD
Retailer 17$14,283 AUD
NZ Jewellers$17,143 AUD

28 data points across 22 retailers

24 retailers$7,281 AUD to $17,143 AUD

A
Cheapest Retailer
-
$7,281 AUD
$5,103 USD
A
Retailer 2
-
$7,671 AUD
HK$42,000 HKD
View
A
Retailer 3
-
$7,784 AUD
$5,455 USD
View
A
Retailer 4
-
$7,815 AUD
$5,477 USD
View
A
Retailer 5
-
$8,098 AUD
$5,675 USD
View
Retailer 6
-
$8,180 AUD
₹545,968 INR
View
Price last confirmed 18 days ago
A
Retailer 7
-
$8,249 AUD
$5,781 USD
View
A
Retailer 8
-
$8,571 AUD
$6,007 USD
View
B+
Retailer 9
-
$8,571 AUD
$6,007 USD
View
Final sale: no returns
Retailer 10
-
$9,072 AUD
SGD 8,592 SGD
View
Price last confirmed 18 days ago
B+
Retailer 11
-
$9,285 AUD
$6,507 USD
View
B+
Retailer 12
-
$9,428 AUD
$6,607 USD
View
B+
Retailer 13
-
$9,646 AUD
$6,760 USD
View
B+
Retailer 14
-
$9,657 AUD
£5,329 GBP
View
B+
Retailer 15
-
$9,829 AUD
£5,424 GBP
View
B+
Retailer 16
-
$10,165 AUD
$7,124 USD
View
B+
Retailer 17
-
$10,316 AUD
$7,230 USD
View
B+
Retailer 18
-
$10,316 AUD
$7,230 USD
View
B+
Retailer 19
-
$10,576 AUD
€7,059 EUR
View
B+
Retailer 20
-
$10,659 AUD
$7,470 USD
View
B+
Retailer 21
-
$10,713 AUD
$7,508 USD
View
B
Retailer 22
-
$11,736 AUD
$8,225 USD
View
B
Retailer 23
-
$14,283 AUD
£7,882 GBP
View
Most Expensive
B
NZ Jewellers
e8a03823-6f25-4fa2-9408-2eef83175308 · Oct 30
$17,143 AUD
$12,014 USD
View
23 more retailers have this diamond
Prices start from $7,281 AUDSave up to $9,861 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
$7,281 AUD