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Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7416816327

Certificate GIA 7416816327

Diamond specifications and retailer prices

From $4,720 AUD
HK$25,900 HKD
As of November 1, 2026
Save $7,838 AUD (62%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,558 AUD at Diamond Quarter · As of October 29, 2026
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 7416816327. Listed at 19 retailers as of October 29, 2026, with prices from $4,720 to $12,558, a $7,838 spread on the same certified stone. Diamond Quarter lists it at $12,558. 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
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7416816327
Dimensions6.80 × 6.76 × 4.22 mm
L/W Ratio1.01
Top View
6.80 mm6.76 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7416816327
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.3%

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 1
Current: $6,462 AUD|Low: $4,665 AUD|High: $11,074 AUD|Avg: $6,749 AUD|-2.3%
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
November 1, 2026
Retailer 12$4,720 AUD
Retailer 16$4,961 AUD
Retailer 3$5,314 AUD
Retailer 14$5,410 AUD
Retailer 2$5,758 AUD
Retailer 9$5,758 AUD
Retailer 17$5,758 AUD
Retailer 1$6,462 AUD
Retailer 6$6,492 AUD
Retailer 18$6,492 AUD
Retailer 13$6,519 AUD
Retailer 10$6,644 AUD
Retailer 8$6,705 AUD
Retailer 4$6,780 AUD
Retailer 5$7,189 AUD
Retailer 11$7,813 AUD
Retailer 15$10,137 AUD
Retailer 7$11,074 AUD

43 data points across 18 retailers

19 retailers$4,720 AUD to $12,558 AUD

A
Cheapest Retailer
-
$4,720 AUD
HK$25,900 HKD
Retailer 2
-
$4,961 AUD
$3,485 USD
View
B+
Retailer 3
-
$5,314 AUD
$3,733 USD
View
Final sale: no returns
A
Retailer 4
-
$5,410 AUD
$3,800 USD
View
B+
Retailer 5
-
$5,758 AUD
$4,045 USD
View
B+
Retailer 6
-
$5,758 AUD
$4,045 USD
View
B+
Retailer 7
-
$5,758 AUD
$4,045 USD
View
B+
Retailer 8
-
$6,462 AUD
£3,574 GBP
View
B+
Retailer 9
-
$6,492 AUD
$4,560 USD
View
B+
Retailer 10
-
$6,492 AUD
$4,560 USD
View
B+
Retailer 11
-
$6,519 AUD
€4,361 EUR
View
B+
Retailer 12
-
$6,644 AUD
$4,667 USD
View
B+
Retailer 13
-
$6,705 AUD
$4,710 USD
View
Retailer 14
-
$6,780 AUD
View
Price last confirmed 22 days ago
Retailer 15
-
$7,189 AUD
$5,050 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$7,813 AUD
ZAR 88,664 ZAR
View
B
Retailer 17
-
$10,137 AUD
£5,607 GBP
View
B
Retailer 18
-
$11,074 AUD
$7,779 USD
View
Most Expensive
B
Diamond Quarter
1.2SI1D74271D2FN · Oct 29
$12,558 AUD
£6,946 GBP
View
18 more retailers have this diamond
Prices start from $4,720 AUDSave up to $7,838 AUD

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
$4,720 AUD