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Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 1246033195

Certificate GIA 1246033195

Diamond specifications and retailer prices

From $4,073 SGD
As of November 3, 2026
Save $455 SGD (10%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,081 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1246033195. Listed at 20 retailers as of November 3, 2026, with a relatively tight 11% 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1246033195
Dimensions9.85 × 5.16 × 3.25 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Pinpoint
Top View
9.85 mm5.16 mm1.00 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1246033195
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.0%

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 3
Current: $4,073 SGD|Low: $3,669 SGD|High: $7,850 SGD|Avg: $5,206 SGD
Retailer 1
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
November 3, 2026
Retailer 9$3,669 SGD
Retailer 1$4,073 SGD
Retailer 12$4,264 SGD
Retailer 5$4,295 SGD
Retailer 6$4,298 SGD
Retailer 8$4,793 SGD
Retailer 13$4,806 SGD
Retailer 14$4,845 SGD
Retailer 3$4,881 SGD
Retailer 4$4,967 SGD
Retailer 10$5,385 SGD
Retailer 11$5,609 SGD
Retailer 7$7,077 SGD
Retailer 2$7,818 SGD

26 data points across 14 retailers

20 retailers$4,073 SGD to $4,528 SGD

Retailer 1
-
$3,459 SGD
Price last confirmed 21 days ago
Retailer 2
-
$3,669 SGD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$4,073 SGD
View
Retailer 4
-
$4,147 SGD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
$4,295 SGD
View
B+
Retailer 6
-
$4,528 SGD
View
Retailer 7
-
$4,638 SGD
View
Price last confirmed 27 days ago
Retailer 8
-
$4,638 SGD
View
Price last confirmed 27 days ago
Retailer 9
-
$4,793 SGD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,806 SGD
View
Price last confirmed 21 days ago
Retailer 11
-
$4,817 SGD
View
Price last confirmed 34 days ago
Retailer 12
-
$4,845 SGD
View
Price last confirmed 22 days ago
Retailer 13
-
$4,881 SGD
View
Price last confirmed 21 days ago
Retailer 14
-
$4,967 SGD
View
Price last confirmed 27 days ago
Retailer 15
-
$5,352 SGD
View
Price last confirmed 36 days ago
Retailer 16
-
$5,352 SGD
View
Price last confirmed 59 days ago
Retailer 17
-
$5,609 SGD
View
Price last confirmed 23 days ago
Retailer 18
-
$7,077 SGD
View
Price last confirmed 21 days ago
Retailer 19
-
$7,818 SGD
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
c39603f8-c0c8-4d69-bbb1-6d5a1bf3ca78 · Sep 30
$8,081 SGD
$6,307 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $4,073 SGDSave up to $455 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
$4,073 SGD