Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 3485065648

Certificate GIA 3485065648

Diamond specifications and retailer prices

From $3,393 USD
As of November 6, 2026
Save $4,410 USD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,803 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 3485065648. Listed at 22 retailers as of November 5, 2026, with prices from $3,393 to $7,803, a $4,410 spread on the same certified stone. NZ Jewellers lists it at $7,803. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3485065648
Dimensions8.72 × 6.30 × 4.03 mm
L/W Ratio1.38
Top View
8.72 mm6.30 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3485065648
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $7,803 USD|Low: $3,445 USD|High: $7,803 USD|Avg: $4,944 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
November 6, 2026
Retailer 8$3,445 USD
Retailer 4$4,058 USD
Retailer 10$4,058 USD
Retailer 12$4,058 USD
Retailer 11$4,295 USD
Retailer 2$4,345 USD
Retailer 5$4,537 USD
Retailer 3$4,682 USD
Retailer 9$5,068 USD
Retailer 6$5,464 USD
Retailer 7$7,114 USD
NZ Jewellers$7,803 USD

39 data points across 12 retailers

22 retailers$3,393 USD to $7,803 USD

B+
Cheapest Retailer
-
$3,393 USD
B+
Retailer 2
-
$3,445 USD
View
B+
Retailer 3
-
$3,571 USD
View
B+
Retailer 4
-
$3,811 USD
View
B+
Retailer 5
-
$4,045 USD
View
Retailer 6
-
$4,058 USD
View
Price last confirmed 36 days ago
Retailer 7
-
$4,058 USD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$4,058 USD
View
B+
Retailer 9
-
$4,058 USD
View
Retailer 10
-
$4,058 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$4,295 USD
View
Price last confirmed 37 days ago
B+
Retailer 12
-
$4,295 USD
View
B+
Retailer 13
-
$4,312 USD
View
B+
Retailer 14
-
$4,345 USD
View
B+
Retailer 15
-
$4,537 USD
View
Retailer 16
-
$4,682 USD
View
Price last confirmed 38 days ago
B
Retailer 17
-
$4,682 USD
View
B
Retailer 18
-
$5,068 USD
View
B
Retailer 19
-
$5,464 USD
View
B
Retailer 20
-
$7,114 USD
View
Retailer 21
-
$7,803 USD
View
Price last confirmed 37 days ago
Most Expensive
C
NZ Jewellers
077c617c-fb5f-41d6-9ecd-75ebe8cdcee3 · Nov 5
$7,803 USD
View
21 more retailers have this diamond
Prices start from $3,393 USDSave up to $4,410 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
$3,393 USD