Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 6375880480

Certificate GIA 6375880480

Diamond specifications and retailer prices

From $6,285 CAD
As of November 6, 2026
Save $6,137 CAD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,422 CAD 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 6375880480. Listed at 17 retailers as of November 5, 2026, with prices from $6,285 to $12,422, a $6,137 spread on the same certified stone. NZ Jewellers lists it at $12,422. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6375880480
Dimensions8.88 × 6.63 × 4.05 mm
L/W Ratio1.34
Top View
8.88 mm6.63 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6375880480
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 61.1%

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 6
Current: $7,032 CAD|Low: $6,555 CAD|High: $11,682 CAD|Avg: $8,111 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$6,555 CAD
Retailer 2$6,591 CAD
Retailer 1$7,032 CAD
Retailer 7$7,427 CAD
Retailer 5$8,402 CAD
Retailer 3$9,061 CAD
Retailer 4$11,513 CAD

40 data points across 7 retailers

17 retailers$6,285 CAD to $12,422 CAD

B+
Cheapest Retailer
-
$6,285 CAD
B+
Retailer 2
-
$6,461 CAD
View
B+
Retailer 3
-
$6,476 CAD
View
Retailer 4
-
$6,555 CAD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$6,591 CAD
View
B
Retailer 6
-
$6,752 CAD
View
B
Retailer 7
-
$6,970 CAD
View
B
Retailer 8
-
$7,032 CAD
View
Retailer 9
-
$7,427 CAD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$7,427 CAD
View
B
Retailer 11
-
$7,427 CAD
View
B
Retailer 12
-
$7,641 CAD
View
B
Retailer 13
-
$8,402 CAD
View
B
Retailer 14
-
$8,569 CAD
View
B
Retailer 15
-
$9,061 CAD
View
C
Retailer 16
-
$11,513 CAD
View
Most Expensive
C
NZ Jewellers
2ac61b3e-3814-4d03-9bf2-8ef5f5c05a53 · Nov 5
$12,422 CAD
$8,831 USD
View
16 more retailers have this diamond
Prices start from $6,285 CADSave up to $6,137 CAD

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
$6,285 CAD