Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 2386505851

Certificate GIA 2386505851

Diamond specifications and retailer prices

From $2,756 USD
As of November 4, 2026
Save $3,497 USD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,253 USD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2386505851. Listed at 18 retailers as of November 4, 2026, with prices from $2,756 to $6,253, a $3,497 spread on the same certified stone. NZ Jewellers lists it at $6,253. 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
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2386505851
Dimensions8.31 × 6.36 × 4.20 mm
L/W Ratio1.31
Top View
8.31 mm6.36 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2386505851
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.0%

Caratlytics Score

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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 4
Current: $6,253 USD|Low: $2,414 USD|High: $6,253 USD|Avg: $3,874 USD
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
November 6, 2026
Retailer 17$2,756 USD
Retailer 18$2,827 USD
Retailer 15$2,829 USD
Retailer 10$2,835 USD
Retailer 6$2,875 USD
Retailer 13$2,886 USD
Retailer 5$3,150 USD
Retailer 9$3,251 USD
Retailer 3$3,267 USD
Retailer 16$3,376 USD
Retailer 8$3,561 USD
Retailer 11$3,714 USD
Retailer 4$3,752 USD
Retailer 2$3,941 USD
Retailer 12$4,380 USD
Retailer 7$5,182 USD
Retailer 14$5,985 USD
NZ Jewellers$6,253 USD

42 data points across 18 retailers

18 retailers$2,756 USD to $6,253 USD

A
Cheapest Retailer
-
$2,756 USD
A
Retailer 2
-
$2,827 USD
View
A
Retailer 3
-
$2,829 USD
View
A
Retailer 4
-
$2,875 USD
View
A
Retailer 5
-
$2,886 USD
View
B+
Retailer 6
-
$3,150 USD
View
B+
Retailer 7
-
$3,251 USD
View
B+
Retailer 8
-
$3,267 USD
View
Retailer 9
-
$3,332 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$3,376 USD
View
B+
Retailer 11
-
$3,561 USD
View
B+
Retailer 12
-
$3,714 USD
View
B+
Retailer 13
-
$3,752 USD
View
B+
Retailer 14
-
$3,941 USD
View
B+
Retailer 15
-
$4,380 USD
View
B
Retailer 16
-
$5,182 USD
View
B
Retailer 17
-
$5,985 USD
View
Most Expensive
B
NZ Jewellers
b0a8d4f0-f7b8-4c21-81cf-4c788d294640 · Nov 5
$6,253 USD
View
17 more retailers have this diamond
Prices start from $2,756 USDSave up to $3,497 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
$2,756 USD