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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7538124930

Certificate GIA 7538124930

Diamond specifications and retailer prices

From $2,926 SGD
As of November 5, 2026
Save $3,841 SGD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,837 SGD at NZ Jewellers · As of October 17, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7538124930. Listed at 15 retailers as of November 2, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7538124930
Dimensions8.88 × 6.46 × 4.06 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
8.88 mm6.46 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7538124930
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 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 5
Current: $7,837 SGD|Low: $2,854 SGD|High: $7,837 SGD|Avg: $4,336 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 9$2,926 SGD
Retailer 12$3,117 SGD
Retailer 2$3,299 SGD
Retailer 4$3,749 SGD
Retailer 6$3,749 SGD
Retailer 3$3,894 SGD
Retailer 13$3,928 SGD
Retailer 7$4,161 SGD
Retailer 5$4,325 SGD
Retailer 14$4,329 SGD
Retailer 10$4,734 SGD
Retailer 8$4,938 SGD
Retailer 11$6,767 SGD
NZ Jewellers$7,837 SGD

32 data points across 14 retailers

15 retailers$2,926 SGD to $6,767 SGD

A
Cheapest Retailer
-
$2,926 SGD
A
Retailer 2
-
$3,117 SGD
View
A
Retailer 3
-
$3,299 SGD
View
A
Retailer 4
-
$3,594 SGD
View
Retailer 5
-
$3,749 SGD
View
Price last confirmed 19 days ago
Retailer 6
-
$3,749 SGD
View
Price last confirmed 21 days ago
Retailer 7
-
$3,894 SGD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$3,928 SGD
View
B+
Retailer 9
-
$4,161 SGD
View
Retailer 10
-
$4,325 SGD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$4,329 SGD
View
B+
Retailer 12
-
$4,734 SGD
View
B+
Retailer 13
-
$4,938 SGD
View
B
Retailer 14
-
$6,767 SGD
View
Most Expensive
NZ Jewellers
19334150-a7b4-4654-a5a9-02760a4528ad · Oct 17
$7,837 SGD
$6,115 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $2,926 SGDSave up to $3,841 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.

A
1.51ct Oval
$2,926 SGD