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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6381212727

Certificate GIA 6381212727

Diamond specifications and retailer prices

From $5,208 AUD
As of November 6, 2026
Save $8,129 AUD (61%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $13,337 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct 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 6381212727. Listed at 25 retailers as of November 5, 2026, with prices from $5,208 to $13,337, a $8,129 spread on the same certified stone. Diamond Quarter lists it at $13,337. 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

1.01
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6381212727
Dimensions6.40 × 6.37 × 3.96 mm
L/W Ratio1.00
Top View
6.40 mm6.37 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6381212727
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,650 AUD|Low: $5,325 AUD|High: $11,199 AUD|Avg: $7,251 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$5,343 AUD
Retailer 5$5,540 AUD
Retailer 8$5,810 AUD
Retailer 1$6,650 AUD
Retailer 4$6,798 AUD
Retailer 9$7,004 AUD
Retailer 3$7,361 AUD
Retailer 2$8,478 AUD
Retailer 6$11,037 AUD

36 data points across 9 retailers

25 retailers$5,208 AUD to $13,337 AUD

B+
Cheapest Retailer
-
$5,208 AUD
B+
Retailer 2
-
$5,338 AUD
View
B+
Retailer 3
-
$5,343 AUD
View
B+
Retailer 4
-
$5,540 AUD
View
B
Retailer 5
-
$5,810 AUD
View
Final sale: no returns
B+
Retailer 6
-
$5,964 AUD
View
B+
Retailer 7
-
$6,258 AUD
View
Retailer 8
-
$6,295 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$6,295 AUD
View
B+
Retailer 10
-
$6,295 AUD
View
B+
Retailer 11
-
$6,650 AUD
View
B+
Retailer 12
-
$6,663 AUD
View
B+
Retailer 13
-
$6,798 AUD
View
Retailer 14
-
$7,004 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$7,085 AUD
View
B
Retailer 16
-
$7,085 AUD
View
B
Retailer 17
-
$7,264 AUD
View
B
Retailer 18
-
$7,314 AUD
View
B
Retailer 19
-
$7,361 AUD
View
Retailer 20
-
$7,672 AUD
View
Price last confirmed 14 days ago
B
Retailer 21
-
$8,478 AUD
View
B
Retailer 22
-
$10,055 AUD
View
B
Retailer 23
-
$11,037 AUD
View
B
Retailer 24
-
$12,107 AUD
View
Most Expensive
B
Diamond Quarter
1.01SI1D63278FF2N · Nov 5
$13,337 AUD
£7,352 GBP
View
24 more retailers have this diamond
Prices start from $5,208 AUDSave up to $8,129 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+
1.01ct Round
$5,208 AUD