Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6562100518

Certificate GIA 6562100518

Diamond specifications and retailer prices

From $4,879 AUD
As of November 6, 2026
Save $1,192 AUD (20%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $9,010 AUD at NZ Jewellers · As of October 6, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562100518. Listed at 25 retailers as of October 31, 2026, with a relatively tight 24% 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6562100518
Dimensions6.83 × 6.88 × 4.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.83 mm6.88 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562100518
Side View
Table 60.0%Crown 31.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,070 AUD|Low: $3,819 AUD|High: $10,316 AUD|Avg: $5,394 AUD|-1.1%
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
Retailer 21
October 31, 2026
Retailer 18$3,836 AUD
Retailer 10$3,930 AUD
Retailer 7$4,120 AUD
Retailer 16$4,205 AUD
Retailer 17$4,276 AUD
Retailer 12$4,497 AUD
Retailer 14$4,551 AUD
Retailer 21$4,934 AUD
Retailer 19$5,254 AUD
Retailer 20$5,254 AUD
Retailer 8$5,273 AUD
Retailer 3$5,309 AUD
Retailer 2$5,429 AUD
Retailer 13$5,539 AUD
Retailer 4$5,596 AUD
Retailer 15$5,637 AUD
Retailer 5$5,755 AUD
Retailer 9$5,983 AUD
Retailer 1$6,070 AUD
Retailer 11$6,280 AUD
Retailer 6$8,539 AUD

24 data points across 21 retailers

25 retailers$4,879 AUD to $6,070 AUD

Retailer 1
-
$3,836 AUD
Price last confirmed 8 days ago
Retailer 2
-
$3,930 AUD
View
Price last confirmed 23 days ago
Retailer 3
-
$4,120 AUD
View
Price last confirmed 8 days ago
Retailer 4
-
$4,205 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$4,497 AUD
View
Price last confirmed 7 days ago
Retailer 6
-
$4,551 AUD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$4,879 AUD
View
Retailer 8
-
$4,934 AUD
View
Price last confirmed 8 days ago
Retailer 9
-
$5,079 AUD
View
Price last confirmed 22 days ago
Retailer 10
-
$5,171 AUD
View
Price last confirmed 31 days ago
Retailer 11
-
$5,212 AUD
View
Price last confirmed 9 days ago
Retailer 12
-
$5,254 AUD
View
Price last confirmed 8 days ago
Retailer 13
-
$5,254 AUD
View
Price last confirmed 8 days ago
Retailer 14
-
$5,273 AUD
View
Price last confirmed 22 days ago
Retailer 15
-
$5,274 AUD
View
Price last confirmed 23 days ago
Retailer 16
-
$5,309 AUD
View
Price last confirmed 8 days ago
Retailer 17
-
$5,429 AUD
View
Price last confirmed 8 days ago
Retailer 18
-
$5,539 AUD
View
Price last confirmed 30 days ago
Retailer 19
-
$5,596 AUD
View
Price last confirmed 9 days ago
Retailer 20
-
$5,637 AUD
View
Price last confirmed 8 days ago
Retailer 21
-
$5,861 AUD
View
Price last confirmed 22 days ago
B
Retailer 22
-
$6,070 AUD
View
Retailer 23
-
$6,280 AUD
View
Price last confirmed 26 days ago
Retailer 24
-
$8,539 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
c7dea26a-bdba-480b-8679-49cfbb6a034f · Oct 6
$9,010 AUD
$6,191 USD
View
Price last confirmed 31 days ago
24 more retailers have this diamond
Prices start from $4,879 AUDSave up to $1,192 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.

B+
1.20ct Round
$4,879 AUD