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Marquise|Natural|IGI

1.00ct E I1 Marquise Natural Diamond

VG • E/I1 • IGI 779604089

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 779604089

Diamond specifications and retailer prices

From $1,431 SGD
$1,119 USD
As of October 30, 2026
Save $2,213 SGD (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,643 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 779604089. Listed at 7 retailers as of October 30, 2026, with prices from $1,431 to $3,643, a $2,213 spread on the same certified stone. NZ Jewellers lists it at $3,643. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.9°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 779604089
Dimensions9.65 × 5.29 × 3.28 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizePointed
Top View
9.65 mm5.29 mm1.00 ctE / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 779604089
Side View
Table 68.0%Crown 37.9°Girdle: MED-THKPavilion 41.2°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: $3,643 SGD|Low: $1,431 SGD|High: $4,054 SGD|Avg: $1,986 SGD|-7.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7$1,431 SGD
Retailer 4$1,494 SGD
Retailer 6$1,494 SGD
Retailer 5$1,552 SGD
Retailer 2$1,723 SGD
Retailer 8$1,911 SGD
Retailer 3$2,091 SGD
NZ Jewellers$3,643 SGD

39 data points across 8 retailers

7 retailers$1,431 SGD to $3,643 SGD

A
Cheapest Retailer
-
$1,431 SGD
$1,119 USD
A
Retailer 2
-
$1,494 SGD
$1,169 USD
View
A
Retailer 3
-
$1,494 SGD
$1,169 USD
View
A
Retailer 4
-
$1,552 SGD
$1,214 USD
View
A
Retailer 5
-
$1,723 SGD
$1,348 USD
View
B+
Retailer 6
-
$2,091 SGD
€1,558 EUR
View
Most Expensive
B+
NZ Jewellers
9492b552-06b1-4c8e-948a-043c823b1ae8 · Oct 30
$3,643 SGD
$2,850 USD
View
6 more retailers have this diamond
Prices start from $1,431 SGDSave up to $2,213 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 Marquise
$1,431 SGD