CaratHunter
Plans
Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 1513557476

Certificate GIA 1513557476

Diamond specifications and retailer prices

From $4,333 USD
As of November 5, 2026
Save $4,944 USD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,277 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1513557476. Listed at 16 retailers as of November 5, 2026, with prices from $4,333 to $9,277, a $4,944 spread on the same certified stone. NZ Jewellers lists it at $9,277. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1513557476
Dimensions9.31 × 6.62 × 3.81 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
9.31 mm6.62 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1513557476
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.5%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $9,277 USD|Low: $4,290 USD|High: $9,277 USD|Avg: $5,946 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
November 6, 2026
Retailer 10$4,290 USD
Retailer 12$4,383 USD
Retailer 11$4,677 USD
Retailer 3$5,025 USD
Retailer 5$5,025 USD
Retailer 13$5,025 USD
Retailer 7$5,358 USD
Retailer 2$5,385 USD
Retailer 4$5,798 USD
Retailer 6$5,906 USD
Retailer 8$6,767 USD
Retailer 9$8,811 USD
NZ Jewellers$9,277 USD

45 data points across 13 retailers

16 retailers$4,333 USD to $9,277 USD

Retailer 1
-
$4,290 USD
Price last confirmed 16 days ago
B+
Retailer 2
-
$4,333 USD
View
B+
Retailer 3
-
$4,383 USD
View
B+
Retailer 4
-
$4,677 USD
View
B
Retailer 5
-
$4,725 USD
View
Retailer 6
-
$5,025 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$5,025 USD
View
B
Retailer 8
-
$5,025 USD
View
B
Retailer 9
-
$5,294 USD
View
B
Retailer 10
-
$5,358 USD
View
B
Retailer 11
-
$5,385 USD
View
B
Retailer 12
-
$5,798 USD
View
B
Retailer 13
-
$5,906 USD
View
B
Retailer 14
-
$6,767 USD
View
C
Retailer 15
-
$8,811 USD
View
Most Expensive
C
NZ Jewellers
8bc41d33-7895-43aa-8bd4-97a357c6a8eb · Nov 5
$9,277 USD
View
15 more retailers have this diamond
Prices start from $4,333 USDSave up to $4,944 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
$4,333 USD