Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 3555981329

Certificate GIA 3555981329

Diamond specifications and retailer prices

From $10,242 AUD
$7,178 USD
As of November 2, 2026
Save $3,250 AUD (24%) vs most expensive(unlock to see where)
33 retailers carry this diamond
Most expensive: $22,715 AUD at NZ Jewellers · As of October 23, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555981329. Listed at 33 retailers as of November 2, 2026, with a 32% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.82°
Pavilion angle39.37°
OriginNatural
Grading LabGIA
CertificateGIA 3555981329
Dimensions8.93 × 6.41 × 3.98 mm
L/W Ratio1.39
Culet sizeNone
Top View
8.93 mm6.41 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555981329
Side View
Table 59.0%Crown 39.82°Girdle: MED-THKPavilion 39.37°Culet: NoneDepth 62.1%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $22,715 AUD|Low: $9,789 AUD|High: $22,715 AUD|Avg: $12,498 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
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
Retailer 30
Retailer 31
Retailer 32
Retailer 33
Retailer 34
Retailer 35
Retailer 36
Retailer 37
October 26, 2026
Retailer 29$9,789 AUD
Retailer 4$9,960 AUD
Retailer 28$10,128 AUD
Retailer 31$10,214 AUD
Retailer 36$10,242 AUD
Retailer 5$10,563 AUD
Retailer 18$10,635 AUD
Retailer 34$10,798 AUD
Retailer 27$10,844 AUD
Retailer 7$10,932 AUD
Retailer 15$11,308 AUD
Retailer 21$11,355 AUD
Retailer 16$11,357 AUD
Retailer 19$11,443 AUD
Retailer 22$12,097 AUD
Retailer 14$12,103 AUD
Retailer 6$12,304 AUD
Retailer 9$12,493 AUD
Retailer 33$12,542 AUD
Retailer 11$12,597 AUD
Retailer 23$12,666 AUD
Retailer 8$12,681 AUD
Retailer 13$12,722 AUD
Retailer 24$12,731 AUD
Retailer 12$13,470 AUD
Retailer 37$13,470 AUD
Retailer 25$13,493 AUD
Retailer 20$13,583 AUD
Retailer 10$13,757 AUD
Retailer 3$13,927 AUD
Retailer 2$14,031 AUD
Retailer 17$14,196 AUD
Retailer 30$15,800 AUD
Retailer 35$16,390 AUD
Retailer 26$16,535 AUD
Retailer 32$18,953 AUD
NZ Jewellers$22,715 AUD

24 data points across 37 retailers

33 retailers$10,242 AUD to $13,493 AUD

Retailer 1
-
$9,960 AUD
$6,980 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$10,242 AUD
$7,178 USD
View
Retailer 3
-
$10,563 AUD
$7,403 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$10,635 AUD
$7,453 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$10,740 AUD
$7,527 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$10,798 AUD
$7,567 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$10,844 AUD
$7,600 USD
View
Price last confirmed 35 days ago
Retailer 8
-
$10,932 AUD
$7,662 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$11,308 AUD
$7,925 USD
View
Price last confirmed 7 days ago
Retailer 10
-
$11,357 AUD
$7,959 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$11,443 AUD
CA$11,138 CAD
View
B+
Retailer 12
-
$12,097 AUD
$8,478 USD
View
Retailer 13
-
$12,103 AUD
$8,482 USD
View
Price last confirmed 8 days ago
Retailer 14
-
$12,304 AUD
$8,623 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$12,493 AUD
$8,755 USD
View
Price last confirmed 8 days ago
Retailer 16
-
$12,542 AUD
View
Price last confirmed 10 days ago
Retailer 17
-
$12,597 AUD
$8,828 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$12,666 AUD
$8,877 USD
View
Price last confirmed 7 days ago
Retailer 19
-
$12,681 AUD
$8,887 USD
View
Price last confirmed 9 days ago
Retailer 20
-
$12,722 AUD
£7,021 GBP
View
Price last confirmed 7 days ago
Retailer 21
-
$12,731 AUD
£7,026 GBP
View
Price last confirmed 7 days ago
Retailer 22
-
$13,470 AUD
$9,440 USD
View
Price last confirmed 7 days ago
Retailer 23
-
$13,470 AUD
$9,440 USD
View
Price last confirmed 7 days ago
B+
Retailer 24
-
$13,493 AUD
$9,456 USD
View
Retailer 25
-
$13,583 AUD
$9,519 USD
View
Price last confirmed 8 days ago
Retailer 26
-
$13,757 AUD
$9,642 USD
View
Price last confirmed 10 days ago
Retailer 27
-
$13,927 AUD
$9,760 USD
View
Price last confirmed 7 days ago
Retailer 28
-
$14,031 AUD
€9,365 EUR
View
Price last confirmed 7 days ago
Retailer 29
-
$14,196 AUD
$9,949 USD
View
Price last confirmed 10 days ago
Retailer 30
-
$15,800 AUD
$11,073 USD
View
Price last confirmed 37 days ago
Retailer 31
-
$16,390 AUD
ZAR 185,562 ZAR
View
Price last confirmed 11 days ago
Retailer 32
-
$18,953 AUD
£10,459 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
d9a550a5-6482-46e5-9c74-e03bdc0a4d1f · Oct 23
$22,715 AUD
$15,919 USD
View
Price last confirmed 10 days ago
32 more retailers have this diamond
Prices start from $10,242 AUDSave up to $3,250 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
$10,242 AUD