Oval|Natural|GIA

1.51ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 3555981329

Certificate GIA 3555981329

Diamond specifications and retailer prices

From $7,178 USD
As of November 2, 2026
Save $2,655 USD (27%) vs most expensive(unlock to see where)
33 retailers carry this diamond
Most expensive: $15,919 USD 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 October 26, 2026, with a 37% 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
Color
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

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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: $15,919 USD|Low: $6,861 USD|High: $15,919 USD|Avg: $8,759 USD
NZ Jewellers
Retailer 2
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Retailer 29
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Retailer 37
October 26, 2026
Retailer 29$6,861 USD
Retailer 4$6,980 USD
Retailer 28$7,098 USD
Retailer 31$7,158 USD
Retailer 36$7,178 USD
Retailer 5$7,403 USD
Retailer 18$7,453 USD
Retailer 34$7,567 USD
Retailer 27$7,600 USD
Retailer 7$7,662 USD
Retailer 15$7,925 USD
Retailer 21$7,958 USD
Retailer 16$7,959 USD
Retailer 19$8,020 USD
Retailer 22$8,478 USD
Retailer 14$8,482 USD
Retailer 6$8,623 USD
Retailer 9$8,755 USD
Retailer 33$8,790 USD
Retailer 11$8,828 USD
Retailer 23$8,877 USD
Retailer 8$8,887 USD
Retailer 13$8,916 USD
Retailer 24$8,922 USD
Retailer 12$9,440 USD
Retailer 37$9,440 USD
Retailer 25$9,456 USD
Retailer 20$9,519 USD
Retailer 10$9,642 USD
Retailer 3$9,760 USD
Retailer 2$9,833 USD
Retailer 17$9,949 USD
Retailer 30$11,073 USD
Retailer 35$11,486 USD
Retailer 26$11,588 USD
Retailer 32$13,283 USD
NZ Jewellers$15,919 USD

24 data points across 37 retailers

33 retailers$7,178 USD to $9,833 USD

Retailer 1
-
$6,980 USD
Price last confirmed 15 days ago
B+
Retailer 2
-
$7,178 USD
View
Retailer 3
-
$7,403 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$7,453 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$7,527 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$7,567 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$7,600 USD
View
Price last confirmed 35 days ago
Retailer 8
-
$7,662 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$7,925 USD
View
Price last confirmed 7 days ago
Retailer 10
-
$7,959 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$8,020 USD
CA$11,138 CAD
View
B+
Retailer 12
-
$8,478 USD
View
Retailer 13
-
$8,482 USD
View
Price last confirmed 8 days ago
Retailer 14
-
$8,623 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$8,755 USD
View
Price last confirmed 8 days ago
Retailer 16
-
$8,790 USD
A$13,522 AUD
View
Price last confirmed 10 days ago
Retailer 17
-
$8,828 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$8,877 USD
View
Price last confirmed 7 days ago
Retailer 19
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$8,887 USD
View
Price last confirmed 9 days ago
Retailer 20
-
$8,916 USD
£7,021 GBP
View
Price last confirmed 7 days ago
Retailer 21
-
$8,922 USD
£7,026 GBP
View
Price last confirmed 7 days ago
Retailer 22
-
$9,440 USD
View
Price last confirmed 7 days ago
Retailer 23
-
$9,440 USD
View
Price last confirmed 7 days ago
B+
Retailer 24
-
$9,456 USD
View
Retailer 25
-
$9,519 USD
View
Price last confirmed 8 days ago
Retailer 26
-
$9,642 USD
View
Price last confirmed 10 days ago
Retailer 27
-
$9,760 USD
View
Price last confirmed 7 days ago
B+
Retailer 28
-
$9,833 USD
€9,365 EUR
View
Retailer 29
-
$9,949 USD
View
Price last confirmed 10 days ago
Retailer 30
-
$11,073 USD
View
Price last confirmed 37 days ago
Retailer 31
-
$11,486 USD
ZAR 185,562 ZAR
View
Price last confirmed 11 days ago
Retailer 32
-
$13,283 USD
£10,459 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
d9a550a5-6482-46e5-9c74-e03bdc0a4d1f · Oct 23
$15,919 USD
View
Price last confirmed 10 days ago
32 more retailers have this diamond
Prices start from $7,178 USDSave up to $2,655 USD

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
$7,178 USD