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Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 7551705063

Certificate GIA 7551705063

Diamond specifications and retailer prices

From $3,462 SGD
As of November 6, 2026
Save $277 SGD (7%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,374 SGD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551705063. Listed at 15 retailers as of November 5, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551705063
Dimensions9.87 × 5.15 × 3.33 mm
L/W Ratio1.92
Culet sizeNone
Top View
9.87 mm5.15 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551705063
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.8%

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: $7,374 SGD|Low: $2,887 SGD|High: $7,374 SGD|Avg: $3,929 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 21, 2026
Retailer 9$2,887 SGD
Retailer 3$2,948 SGD
Retailer 8$2,991 SGD
Retailer 7$3,082 SGD
Retailer 4$3,195 SGD
Retailer 5$3,195 SGD
Retailer 10$3,250 SGD
Retailer 6$3,342 SGD
Retailer 15$3,462 SGD
Retailer 2$3,494 SGD
Retailer 17$3,687 SGD
Retailer 11$3,697 SGD
Retailer 16$3,709 SGD
Retailer 14$3,738 SGD
Retailer 13$4,099 SGD
Retailer 18$5,132 SGD
Retailer 12$6,212 SGD
NZ Jewellers$7,374 SGD

27 data points across 18 retailers

15 retailers$3,462 SGD to $3,738 SGD

Retailer 1
-
$2,887 SGD
Price last confirmed 17 days ago
Retailer 2
-
$2,948 SGD
View
Price last confirmed 18 days ago
Retailer 3
-
$3,082 SGD
View
Price last confirmed 17 days ago
Retailer 4
-
$3,195 SGD
View
Price last confirmed 17 days ago
Retailer 5
-
$3,195 SGD
View
Price last confirmed 21 days ago
Retailer 6
-
$3,250 SGD
View
Price last confirmed 19 days ago
Retailer 7
-
$3,342 SGD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
$3,462 SGD
View
Retailer 9
-
$3,687 SGD
View
Price last confirmed 18 days ago
Retailer 10
-
$3,697 SGD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$3,709 SGD
View
B+
Retailer 12
-
$3,738 SGD
View
Retailer 13
-
$5,132 SGD
View
Price last confirmed 18 days ago
Retailer 14
-
$6,212 SGD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
43b8eb8b-819e-4622-9965-29f5f88f7185 · Oct 17
$7,374 SGD
$5,754 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from $3,462 SGDSave up to $277 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+
1.00ct Marquise
$3,462 SGD