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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1519052866

Certificate GIA 1519052866

Diamond specifications and retailer prices

From $3,795 SGD
As of November 6, 2026
Save $4,083 SGD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,878 SGD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.05ct natural round diamond

This 1.05ct 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 1519052866. Listed at 18 retailers as of November 5, 2026, with prices from $3,795 to $7,878, a $4,083 spread on the same certified stone. Diamond Quarter lists it at $7,878. 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

1.05
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1519052866
Dimensions6.52 × 6.49 × 4.04 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
6.52 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519052866
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°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: $4,091 SGD|Low: $3,857 SGD|High: $7,236 SGD|Avg: $4,785 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,857 SGD
Retailer 8$3,946 SGD
Retailer 1$4,091 SGD
Retailer 2$4,396 SGD
Retailer 9$4,566 SGD
Retailer 4$4,964 SGD
Retailer 3$4,966 SGD
Retailer 5$5,218 SGD
Retailer 6$7,130 SGD

34 data points across 9 retailers

18 retailers$3,795 SGD to $7,878 SGD

B+
Cheapest Retailer
-
$3,795 SGD
B+
Retailer 2
-
$3,857 SGD
View
B+
Retailer 3
-
$3,946 SGD
View
Final sale: no returns
B+
Retailer 4
-
$4,091 SGD
View
B+
Retailer 5
-
$4,132 SGD
View
Retailer 6
-
$4,275 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,275 SGD
View
B+
Retailer 8
-
$4,396 SGD
View
B+
Retailer 9
-
$4,440 SGD
View
Retailer 10
-
$4,566 SGD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$4,723 SGD
View
B
Retailer 12
-
$4,933 SGD
View
B+
Retailer 13
-
$4,964 SGD
View
B+
Retailer 14
-
$4,966 SGD
View
B
Retailer 15
-
$5,218 SGD
View
B
Retailer 16
-
$7,130 SGD
View
B
Retailer 17
-
$7,448 SGD
View
Most Expensive
B
Diamond Quarter
1.05SI1H1566220DN · Nov 5
$7,878 SGD
£4,856 GBP
View
17 more retailers have this diamond
Prices start from $3,795 SGDSave up to $4,083 SGD

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+
1.05ct Round
$3,795 SGD