Round|Natural|IGI

1.00ct I IF Round Natural Diamond

EX • I/IF • IGI 654416351

Shape and cutting style on the report: Round brilliant

Certificate IGI 654416351

Diamond specifications and retailer prices

From $2,798 SGD
$2,189 USD
As of October 30, 2026
Save $1,070 SGD (28%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,669 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 654416351. Listed at 18 retailers as of October 30, 2026, with a 38% 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

1.00
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 654416351
Dimensions6.35 × 6.44 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.35 mm6.44 mm1.00 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 654416351
Side View
Table 56.0%Crown 33.9°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.0%

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: Oct 30
Current: $3,869 SGD|Low: $2,383 SGD|High: $5,657 SGD|Avg: $3,474 SGD|+3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$2,798 SGD
Retailer 4$2,800 SGD
Retailer 6$2,850 SGD
Retailer 10$2,860 SGD
Retailer 2$3,098 SGD
Retailer 3$3,349 SGD
Retailer 7$3,547 SGD
Retailer 5$3,772 SGD
Retailer 1$3,869 SGD
Retailer 9$5,657 SGD

38 data points across 10 retailers

18 retailers$2,798 SGD to $3,869 SGD

A
Cheapest Retailer
-
$2,798 SGD
$2,189 USD
A
Retailer 2
-
$2,800 SGD
$2,190 USD
View
A
Retailer 3
-
$2,850 SGD
$2,229 USD
View
A
Retailer 4
-
$2,860 SGD
$2,237 USD
View
Final sale: no returns
Retailer 5
-
$3,098 SGD
$2,423 USD
View
Price last confirmed 49 days ago
Retailer 6
-
$3,098 SGD
$2,423 USD
View
Price last confirmed 37 days ago
Retailer 7
-
$3,190 SGD
$2,495 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$3,190 SGD
$2,495 USD
View
Price last confirmed 13 days ago
A
Retailer 9
-
$3,349 SGD
£2,063 GBP
View
A
Retailer 10
-
$3,547 SGD
£2,185 GBP
View
Retailer 11
-
$3,574 SGD
$2,796 USD
View
Price last confirmed 54 days ago
Retailer 12
-
$3,574 SGD
$2,796 USD
View
Price last confirmed 38 days ago
A
Retailer 13
-
$3,772 SGD
ZAR 47,663 ZAR
View
A
Retailer 14
-
$3,869 SGD
€2,882 EUR
View
Retailer 15
-
$5,657 SGD
£3,484 GBP
View
Price last confirmed 20 days ago
Retailer 16
-
$6,475 SGD
$5,065 USD
View
Price last confirmed 50 days ago
Retailer 17
-
$6,475 SGD
$5,065 USD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
bdeaa615-7175-4fb5-bd0a-485c6e2d260e · Oct 17
$6,669 SGD
$5,217 USD
View
Price last confirmed 13 days ago
17 more retailers have this diamond
Prices start from $2,798 SGDSave up to $1,070 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
1.00ct Round
$2,798 SGD