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Round|Natural|GIA

0.45ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2506677139

Certificate GIA 2506677139

Diamond specifications and retailer prices

From $390 SGD
₹28,998 INR
As of October 29, 2026
Save $1,680 SGD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,120 SGD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2506677139. Listed at 24 retailers as of October 29, 2026, with a 430% 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

0.45
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2506677139
Dimensions4.91 × 4.85 × 3.07 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.91 mm4.85 mm0.45 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2506677139
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

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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: Oct 29
Current: $2,070 SGD|Low: $390 SGD|High: $2,070 SGD|Avg: $749 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
October 30, 2026
Retailer 8$390 SGD
Retailer 5$459 SGD
Retailer 4$558 SGD
Retailer 12$562 SGD
Retailer 6$573 SGD
Retailer 9$582 SGD
Retailer 13$584 SGD
Retailer 2$666 SGD
Retailer 7$676 SGD
Retailer 11$733 SGD
Retailer 14$753 SGD
Retailer 3$871 SGD
Retailer 10$1,253 SGD
NZ Jewellers$2,070 SGD

36 data points across 14 retailers

24 retailers$390 SGD to $2,070 SGD

A
Cheapest Retailer
-
$390 SGD
₹28,998 INR
A
Retailer 2
-
$459 SGD
HK$2,800 HKD
View
A
Retailer 3
-
$552 SGD
$431 USD
View
Retailer 4
-
$552 SGD
$431 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$558 SGD
$435 USD
View
A
Retailer 6
-
$562 SGD
A$674 AUD
View
A
Retailer 7
-
$573 SGD
View
A
Retailer 8
-
$582 SGD
$454 USD
View
A
Retailer 9
-
$584 SGD
$456 USD
View
Retailer 10
-
$596 SGD
$465 USD
View
Price last confirmed 7 days ago
A
Retailer 11
-
$596 SGD
$465 USD
View
A
Retailer 12
-
$596 SGD
$465 USD
View
Retailer 13
-
$596 SGD
$465 USD
View
Price last confirmed 30 days ago
Retailer 14
-
$638 SGD
$498 USD
View
Price last confirmed 11 days ago
Retailer 15
-
$638 SGD
$498 USD
View
Price last confirmed 20 days ago
A
Retailer 16
-
$666 SGD
£409 GBP
View
A
Retailer 17
-
$676 SGD
£415 GBP
View
A
Retailer 18
-
$733 SGD
$572 USD
View
A
Retailer 19
-
$753 SGD
$588 USD
View
B+
Retailer 20
-
$871 SGD
€647 EUR
View
B+
Retailer 21
-
$1,253 SGD
£770 GBP
View
B
Retailer 22
-
$1,347 SGD
£828 GBP
View
B
Retailer 23
-
$2,070 SGD
$1,615 USD
View
Most Expensive
NZ Jewellers
5b5168c3-27cd-4eb1-8ddd-221a5709e101 · Sep 24
$2,120 SGD
$1,654 USD
View
Price last confirmed 35 days ago
23 more retailers have this diamond
Prices start from $390 SGDSave up to $1,680 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
0.45ct Round
$390 SGD