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Round|Natural|IGI

1.60ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 674526478

Shape and cutting style on the report: Round brilliant

Certificate IGI 674526478

Diamond specifications and retailer prices

From $5,357 SGD
₹399,061 INR
As of October 26, 2026
Save $5,573 SGD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,624 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 674526478. Listed at 18 retailers as of October 26, 2026, with a 104% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.60
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 674526478
Dimensions7.45 × 7.36 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.45 mm7.36 mm1.60 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 674526478
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $8,345 SGD|Low: $5,341 SGD|High: $11,204 SGD|Avg: $7,292 SGD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 27, 2026
Retailer 5$5,357 SGD
Retailer 12$5,798 SGD
Retailer 3$5,977 SGD
Retailer 6$6,055 SGD
Retailer 9$6,066 SGD
Retailer 4$6,326 SGD
Retailer 7$6,733 SGD
Retailer 10$6,854 SGD
Retailer 11$7,049 SGD
Retailer 8$7,294 SGD
Retailer 1$8,345 SGD
Retailer 2$10,930 SGD

34 data points across 12 retailers

18 retailers$5,357 SGD to $10,930 SGD

A
Cheapest Retailer
-
$5,357 SGD
₹399,061 INR
Retailer 2
-
$5,798 SGD
$4,535 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$5,977 SGD
$4,675 USD
View
A
Retailer 4
-
$6,055 SGD
$4,736 USD
View
Retailer 5
-
$6,066 SGD
$4,745 USD
View
Price last confirmed 5 days ago
A
Retailer 6
-
$6,733 SGD
£4,147 GBP
View
Retailer 7
-
$6,854 SGD
$5,361 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$6,951 SGD
$5,437 USD
View
Price last confirmed 31 days ago
Retailer 9
-
$6,951 SGD
$5,437 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$7,049 SGD
$5,514 USD
View
A
Retailer 11
-
$7,294 SGD
€5,434 EUR
View
Retailer 12
-
$8,019 SGD
$6,273 USD
View
Price last confirmed 32 days ago
Retailer 13
-
$8,019 SGD
$6,273 USD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
$8,345 SGD
ZAR 105,456 ZAR
View
B
Retailer 15
-
$10,930 SGD
£6,732 GBP
View
Retailer 16
-
$11,624 SGD
$9,093 USD
View
Price last confirmed 9 days ago
Retailer 17
-
$11,624 SGD
$9,093 USD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
53b68915-3cfa-4a4d-a174-83554a9d2e67 · Sep 28
$11,624 SGD
$9,093 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from $5,357 SGDSave up to $5,573 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
1.60ct Round
$5,357 SGD