Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6522365391

Certificate GIA 6522365391

Diamond specifications and retailer prices

From $5,973 USD
As of November 1, 2026
Save $6,670 USD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,643 USD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6522365391. Listed at 16 retailers as of October 30, 2026, with prices from $5,973 to $12,643, a $6,670 spread on the same certified stone. NZ Jewellers lists it at $12,643. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle38.74°
Pavilion angle39.76°
OriginNatural
Grading LabGIA
CertificateGIA 6522365391
Dimensions9.38 × 6.32 × 3.85 mm
L/W Ratio1.48
Top View
9.38 mm6.32 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6522365391
Side View
Table 59.0%Crown 38.74°Girdle: MED-THKPavilion 39.76°Culet: NoneDepth 61.0%

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: Nov 1
Current: $12,643 USD|Low: $5,973 USD|High: $12,643 USD|Avg: $7,896 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$5,973 USD
Retailer 8$6,322 USD
Retailer 6$6,848 USD
Retailer 11$6,954 USD
Retailer 4$7,127 USD
Retailer 10$7,209 USD
Retailer 3$7,483 USD
Retailer 7$7,902 USD
Retailer 2$8,258 USD
Retailer 5$10,535 USD
NZ Jewellers$12,643 USD

44 data points across 11 retailers

16 retailers$5,973 USD to $12,643 USD

A
Cheapest Retailer
-
$5,973 USD
B+
Retailer 2
-
$6,322 USD
View
B+
Retailer 3
-
$6,374 USD
View
B+
Retailer 4
-
$6,848 USD
View
B+
Retailer 5
-
$6,954 USD
View
B+
Retailer 6
-
$7,127 USD
£5,612 GBP
View
B+
Retailer 7
-
$7,483 USD
View
Retailer 8
-
$7,902 USD
View
Price last confirmed 62 days ago
B+
Retailer 9
-
$7,902 USD
View
B+
Retailer 10
-
$8,000 USD
View
B+
Retailer 11
-
$8,000 USD
View
B+
Retailer 12
-
$8,258 USD
€7,865 EUR
View
B
Retailer 13
-
$8,270 USD
View
B
Retailer 14
-
$10,535 USD
£8,295 GBP
View
Retailer 15
-
$12,643 USD
View
Price last confirmed 63 days ago
Most Expensive
B
NZ Jewellers
eb984eed-b178-4d39-863e-7afc21aeca99 · Oct 30
$12,643 USD
View
15 more retailers have this diamond
Prices start from $5,973 USDSave up to $6,670 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.

A
1.51ct Oval
$5,973 USD