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Round|Natural|IGI

1.05ct I VVS1 Round Natural Diamond

EX • I/VVS1 • IGI 801638440

Shape and cutting style on the report: Round brilliant

Certificate IGI 801638440

Diamond specifications and retailer prices

From $3,436 SGD
As of November 1, 2026
Save $3,039 SGD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,745 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 801638440. Listed at 13 retailers as of November 1, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
I
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 801638440
Dimensions6.44 × 6.49 × 4.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.44 mm6.49 mm1.05 ctI / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638440
Side View
Table 56.0%Crown 35.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

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: $4,154 SGD|Low: $3,340 SGD|High: $6,553 SGD|Avg: $4,406 SGD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3$3,436 SGD
Retailer 7$3,468 SGD
Retailer 5$3,573 SGD
Retailer 1$4,154 SGD
Retailer 2$4,342 SGD
Retailer 9$4,485 SGD
Retailer 8$4,561 SGD
Retailer 6$4,759 SGD
Retailer 4$6,475 SGD

36 data points across 9 retailers

13 retailers$3,436 SGD to $6,475 SGD

A
Cheapest Retailer
-
$3,436 SGD
A
Retailer 2
-
$3,468 SGD
View
A
Retailer 3
-
$3,468 SGD
View
A
Retailer 4
-
$3,787 SGD
View
Retailer 5
-
$3,871 SGD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$4,054 SGD
View
A
Retailer 7
-
$4,154 SGD
View
A
Retailer 8
-
$4,342 SGD
View
Retailer 9
-
$4,468 SGD
View
Price last confirmed 37 days ago
B+
Retailer 10
-
$4,485 SGD
View
B+
Retailer 11
-
$4,759 SGD
View
B+
Retailer 12
-
$6,475 SGD
View
Most Expensive
NZ Jewellers
69ddaa5c-6234-4df8-b67c-f9b38e55822d · Sep 28
$6,745 SGD
$5,281 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from $3,436 SGDSave up to $3,039 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.

A
1.05ct Round
$3,436 SGD