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Oval|Natural|GIA

1.45ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6542880639

Certificate GIA 6542880639

Diamond specifications and retailer prices

From $1,607 SGD
As of November 6, 2026
Save $3,663 SGD (70%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,516 SGD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.45ct natural oval diamond

This 1.45ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded M 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 6542880639. Listed at 15 retailers as of November 5, 2026, with a 228% 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

1.45
Carat
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542880639
Dimensions9.40 × 6.30 × 3.71 mm
L/W Ratio1.49
Top View
9.40 mm6.30 mm1.45 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542880639
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 58.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,270 SGD|Low: $1,607 SGD|High: $6,009 SGD|Avg: $2,686 SGD|-12.3%
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 13$1,607 SGD
Retailer 11$1,969 SGD
Retailer 2$2,124 SGD
Retailer 9$2,161 SGD
Retailer 5$2,188 SGD
Retailer 4$2,211 SGD
Retailer 10$2,249 SGD
Retailer 12$2,261 SGD
Retailer 6$2,335 SGD
Retailer 3$2,493 SGD
Retailer 8$2,636 SGD
Retailer 7$2,935 SGD
NZ Jewellers$5,270 SGD

35 data points across 13 retailers

15 retailers$1,607 SGD to $5,270 SGD

A
Cheapest Retailer
-
$1,607 SGD
A
Retailer 2
-
$1,969 SGD
View
A
Retailer 3
-
$2,124 SGD
View
A
Retailer 4
-
$2,161 SGD
View
B+
Retailer 5
-
$2,188 SGD
View
Retailer 6
-
$2,211 SGD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$2,249 SGD
View
B+
Retailer 8
-
$2,261 SGD
View
A
Retailer 9
-
$2,335 SGD
View
A
Retailer 10
-
$2,493 SGD
View
B+
Retailer 11
-
$2,636 SGD
View
B+
Retailer 12
-
$2,935 SGD
View
Retailer 13
-
$2,959 SGD
View
Price last confirmed 70 days ago
B
Retailer 14
-
$5,270 SGD
View
Most Expensive
NZ Jewellers
cf286401-5e2d-4941-a238-4453e597320e · Oct 14
$5,516 SGD
$4,304 USD
View
Price last confirmed 23 days ago
14 more retailers have this diamond
Prices start from $1,607 SGDSave up to $3,663 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
1.45ct Oval
$1,607 SGD