Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6541062520

Certificate GIA 6541062520

Diamond specifications and retailer prices

From $3,574 USD
SGD 4,830 SGD
As of October 29, 2026
Save $175 USD (5%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,039 USD 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 29, 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
Color
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 29
Current: $3,226 USD|Low: $3,059 USD|High: $6,838 USD|Avg: $4,215 USD|-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$3,059 USD
Retailer 1$3,226 USD
Retailer 10$3,574 USD
Retailer 9$3,619 USD
Retailer 11$3,728 USD
Retailer 3$3,749 USD
Retailer 4$3,750 USD
Retailer 5$4,088 USD
Retailer 12$4,332 USD
Retailer 7$4,550 USD
Retailer 8$4,904 USD
Retailer 6$6,793 USD

34 data points across 12 retailers

18 retailers$3,574 USD to $3,749 USD

Retailer 1
-
$3,059 USD
HK$23,900 HKD
Price last confirmed 10 days ago
Retailer 2
-
$3,226 USD
₹307,279 INR
View
Price last confirmed 11 days ago
A
Retailer 3
-
$3,574 USD
SGD 4,830 SGD
View
Retailer 4
-
$3,619 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$3,670 USD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$3,749 USD
View
Retailer 7
-
$3,750 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$3,885 USD
SGD 5,250 SGD
View
Price last confirmed 11 days ago
Retailer 9
-
$4,040 USD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,040 USD
View
Price last confirmed 18 days ago
Retailer 11
-
$4,040 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$4,050 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$4,088 USD
£3,219 GBP
View
Price last confirmed 11 days ago
Retailer 14
-
$4,332 USD
A$6,665 AUD
View
Price last confirmed 26 days ago
Retailer 15
-
$4,662 USD
View
Price last confirmed 21 days ago
Retailer 16
-
$4,904 USD
ZAR 79,230 ZAR
View
Price last confirmed 13 days ago
Retailer 17
-
$6,793 USD
£5,349 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
7e1079aa-910d-46f0-a4dd-76e0bf95d529 · Sep 28
$7,039 USD
View
Price last confirmed 32 days ago
17 more retailers have this diamond
Prices start from $3,574 USDSave up to $175 USD

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
$3,574 USD