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1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7501832841

Certificate GIA 7501832841

Diamond specifications and retailer prices

From $17,268 AUD
£9,551 GBP
As of October 31, 2026
15 retailers carry this diamond
Most expensive: $17,268 AUD at Diamond Quarter
View at Diamond Quarter

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 7501832841. Listed at 15 retailers as of October 31, 2026. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7501832841
Dimensions6.77 × 6.74 × 4.18 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.77 mm6.74 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7501832841
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $8,501 AUD|Low: $6,876 AUD|High: $14,637 AUD|Avg: $8,919 AUD|-0.3%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 16, 2026
Retailer 17$6,914 AUD
Retailer 5$6,969 AUD
Retailer 3$6,983 AUD
Retailer 20$7,417 AUD
Retailer 8$7,834 AUD
Retailer 11$7,900 AUD
Retailer 6$7,928 AUD
Retailer 7$7,928 AUD
Retailer 19$7,928 AUD
Retailer 10$8,331 AUD
Retailer 12$8,381 AUD
Retailer 1$8,501 AUD
Retailer 4$8,697 AUD
Retailer 16$9,091 AUD
Retailer 2$9,148 AUD
Retailer 13$9,256 AUD
Retailer 9$9,652 AUD
Retailer 15$10,628 AUD
Retailer 14$13,032 AUD
Retailer 18$14,637 AUD

20 data points across 20 retailers

15 retailers

Retailer 1
-
$6,914 AUD
$4,857 USD
Price last confirmed 17 days ago
Retailer 2
-
$6,983 AUD
$4,905 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$7,834 AUD
$5,503 USD
View
Price last confirmed 16 days ago
Retailer 4
-
$7,928 AUD
$5,569 USD
View
Price last confirmed 16 days ago
Retailer 5
-
$7,928 AUD
$5,569 USD
View
Price last confirmed 23 days ago
Retailer 6
-
$7,928 AUD
$5,569 USD
View
Price last confirmed 16 days ago
Retailer 7
-
$8,381 AUD
£4,635 GBP
View
Price last confirmed 16 days ago
Retailer 8
-
$8,501 AUD
£4,702 GBP
View
Price last confirmed 16 days ago
Retailer 9
-
$8,697 AUD
View
Price last confirmed 28 days ago
Retailer 10
-
$9,148 AUD
$6,426 USD
View
Price last confirmed 23 days ago
Retailer 11
-
$9,652 AUD
$6,780 USD
View
Price last confirmed 18 days ago
Retailer 12
-
$10,628 AUD
ZAR 120,609 ZAR
View
Price last confirmed 20 days ago
Retailer 13
-
$13,032 AUD
£7,208 GBP
View
Price last confirmed 17 days ago
Retailer 14
-
$14,637 AUD
$10,282 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Diamond Quarter
1.2SI1D754149C9N · Oct 31
$17,268 AUD
£9,551 GBP
View
14 more retailers have this diamond

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.

B
1.20ct Round
$17,268 AUD