Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 5543492720

Certificate GIA 5543492720

Diamond specifications and retailer prices

From $2,338 USD
As of November 6, 2026
Save $2,984 USD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,322 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 5543492720. Listed at 14 retailers as of November 5, 2026, with prices from $2,338 to $5,322, a $2,984 spread on the same certified stone. NZ Jewellers lists it at $5,322. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543492720
Dimensions9.21 × 6.37 × 3.99 mm
L/W Ratio1.45
Top View
9.21 mm6.37 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543492720
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NDepth 62.7%

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 6
Current: $5,322 USD|Low: $1,804 USD|High: $5,322 USD|Avg: $2,681 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
Retailer 19
November 6, 2026
Retailer 10$1,804 USD
Retailer 15$2,338 USD
Retailer 7$2,350 USD
Retailer 9$2,356 USD
Retailer 11$2,422 USD
Retailer 3$2,478 USD
Retailer 19$2,720 USD
Retailer 17$2,768 USD
Retailer 13$2,801 USD
Retailer 5$2,874 USD
Retailer 8$2,913 USD
Retailer 2$2,963 USD
Retailer 12$3,121 USD
Retailer 18$3,157 USD
Retailer 14$3,193 USD
Retailer 6$3,352 USD
Retailer 16$3,728 USD
Retailer 4$4,094 USD
NZ Jewellers$5,322 USD

11 data points across 19 retailers

14 retailers$2,338 USD to $5,322 USD

A
Cheapest Retailer
-
$2,338 USD
Retailer 2
-
$2,350 USD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$2,478 USD
View
B+
Retailer 4
-
$2,720 USD
View
B+
Retailer 5
-
$2,768 USD
View
B+
Retailer 6
-
$2,801 USD
View
B+
Retailer 7
-
$2,874 USD
View
B+
Retailer 8
-
$2,963 USD
View
B+
Retailer 9
-
$3,121 USD
View
B+
Retailer 10
-
$3,157 USD
View
B+
Retailer 11
-
$3,193 USD
View
B+
Retailer 12
-
$3,728 USD
View
B+
Retailer 13
-
$4,094 USD
View
Most Expensive
B
NZ Jewellers
0c405d4e-f861-4ade-b40e-77f1de424cea · Nov 5
$5,322 USD
View
13 more retailers have this diamond
Prices start from $2,338 USDSave up to $2,984 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
$2,338 USD