Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6541062520

Certificate GIA 6541062520

Diamond specifications and retailer prices

From $4,569 SGD
As of October 31, 2026
Save $223 SGD (5%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,999 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541062520. Listed at 18 retailers as of October 30, 2026, with a relatively tight 5% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.20
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541062520
Dimensions6.87 × 6.84 × 4.17 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.87 mm6.84 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6541062520
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $4,125 SGD|Low: $3,911 SGD|High: $8,741 SGD|Avg: $5,393 SGD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 19, 2026
Retailer 2$3,911 SGD
Retailer 1$4,125 SGD
Retailer 10$4,569 SGD
Retailer 9$4,627 SGD
Retailer 11$4,766 SGD
Retailer 3$4,793 SGD
Retailer 4$4,794 SGD
Retailer 5$5,226 SGD
Retailer 12$5,538 SGD
Retailer 7$5,816 SGD
Retailer 8$6,270 SGD
Retailer 6$8,684 SGD

33 data points across 12 retailers

18 retailers$4,569 SGD to $4,793 SGD

Retailer 1
-
$3,911 SGD
HK$23,900 HKD
Price last confirmed 11 days ago
Retailer 2
-
$4,125 SGD
₹307,279 INR
View
Price last confirmed 12 days ago
A
Retailer 3
-
$4,569 SGD
View
Retailer 4
-
$4,627 SGD
$3,619 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$4,692 SGD
$3,670 USD
View
Price last confirmed 23 days ago
B+
Retailer 6
-
$4,793 SGD
$3,749 USD
View
Retailer 7
-
$4,794 SGD
$3,750 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$4,967 SGD
View
Price last confirmed 12 days ago
Retailer 9
-
$5,165 SGD
$4,040 USD
View
Price last confirmed 22 days ago
Retailer 10
-
$5,165 SGD
$4,040 USD
View
Price last confirmed 19 days ago
Retailer 11
-
$5,165 SGD
$4,040 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$5,178 SGD
$4,050 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$5,226 SGD
£3,219 GBP
View
Price last confirmed 12 days ago
Retailer 14
-
$5,538 SGD
A$6,665 AUD
View
Price last confirmed 27 days ago
Retailer 15
-
$5,960 SGD
$4,662 USD
View
Price last confirmed 22 days ago
Retailer 16
-
$6,270 SGD
ZAR 79,230 ZAR
View
Price last confirmed 14 days ago
Retailer 17
-
$8,684 SGD
£5,349 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
7e1079aa-910d-46f0-a4dd-76e0bf95d529 · Sep 28
$8,999 SGD
$7,039 USD
View
Price last confirmed 33 days ago
17 more retailers have this diamond
Prices start from $4,569 SGDSave up to $223 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
1.20ct Round
$4,569 SGD