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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 3485065648

Certificate GIA 3485065648

Diamond specifications and retailer prices

From $4,348 SGD
As of November 6, 2026
Save $5,652 SGD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,000 SGD 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 $4,348 to $10,000, a $5,652 spread on the same certified stone. NZ Jewellers lists it at $10,000. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,000 SGD|Low: $4,415 SGD|High: $10,000 SGD|Avg: $6,336 SGD
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$4,415 SGD
Retailer 4$5,201 SGD
Retailer 10$5,201 SGD
Retailer 12$5,201 SGD
Retailer 11$5,504 SGD
Retailer 2$5,569 SGD
Retailer 5$5,815 SGD
Retailer 3$6,000 SGD
Retailer 9$6,495 SGD
Retailer 6$7,003 SGD
Retailer 7$9,117 SGD
NZ Jewellers$10,000 SGD

39 data points across 12 retailers

22 retailers$4,348 SGD to $10,000 SGD

B+
Cheapest Retailer
-
$4,348 SGD
B+
Retailer 2
-
$4,415 SGD
View
B+
Retailer 3
-
$4,577 SGD
View
B+
Retailer 4
-
$4,884 SGD
View
B+
Retailer 5
-
$5,184 SGD
View
Retailer 6
-
$5,201 SGD
View
Price last confirmed 36 days ago
Retailer 7
-
$5,201 SGD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$5,201 SGD
View
B+
Retailer 9
-
$5,201 SGD
View
Retailer 10
-
$5,201 SGD
View
Price last confirmed 8 days ago
Retailer 11
-
$5,504 SGD
View
Price last confirmed 37 days ago
B+
Retailer 12
-
$5,504 SGD
View
B+
Retailer 13
-
$5,526 SGD
View
B+
Retailer 14
-
$5,569 SGD
View
B+
Retailer 15
-
$5,815 SGD
View
Retailer 16
-
$6,000 SGD
View
Price last confirmed 38 days ago
B
Retailer 17
-
$6,000 SGD
View
B
Retailer 18
-
$6,495 SGD
View
B
Retailer 19
-
$7,003 SGD
View
B
Retailer 20
-
$9,117 SGD
View
Retailer 21
-
$10,000 SGD
View
Price last confirmed 37 days ago
Most Expensive
C
NZ Jewellers
077c617c-fb5f-41d6-9ecd-75ebe8cdcee3 · Nov 5
$10,000 SGD
$7,803 USD
View
21 more retailers have this diamond
Prices start from $4,348 SGDSave up to $5,652 SGD

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
$4,348 SGD