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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2546186288

Certificate GIA 2546186288

Diamond specifications and retailer prices

From $3,890 SGD
As of November 6, 2026
Save $1,765 SGD (31%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,016 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546186288. Listed at 21 retailers as of October 31, 2026, with a 45% 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

1.00
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546186288
Dimensions11.81 × 5.02 × 2.83 mm
L/W Ratio2.35
Top View
11.81 mm5.02 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546186288
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 56.5%

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: $5,367 SGD|Low: $3,449 SGD|High: $7,787 SGD|Avg: $5,008 SGD|+8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$3,471 SGD
Retailer 7$3,890 SGD
Retailer 6$4,074 SGD
Retailer 4$4,179 SGD
Retailer 5$4,684 SGD
Retailer 3$4,778 SGD
Retailer 9$4,809 SGD
Retailer 2$4,928 SGD
Retailer 1$5,367 SGD
Retailer 8$5,654 SGD
Retailer 11$7,736 SGD

40 data points across 11 retailers

21 retailers$3,890 SGD to $5,654 SGD

Retailer 1
-
$3,471 SGD
Price last confirmed 8 days ago
B+
Retailer 2
-
$3,890 SGD
View
Final sale: no returns
Retailer 3
-
$3,928 SGD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$4,074 SGD
View
Retailer 5
-
$4,084 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,179 SGD
View
B+
Retailer 7
-
$4,310 SGD
View
Retailer 8
-
$4,601 SGD
View
Price last confirmed 9 days ago
Retailer 9
-
$4,601 SGD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$4,684 SGD
View
Retailer 11
-
$4,778 SGD
View
Price last confirmed 9 days ago
Retailer 12
-
$4,787 SGD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
$4,809 SGD
View
Retailer 14
-
$4,928 SGD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$5,015 SGD
View
B+
Retailer 16
-
$5,308 SGD
View
B
Retailer 17
-
$5,367 SGD
View
Retailer 18
-
$5,393 SGD
View
Price last confirmed 62 days ago
B
Retailer 19
-
$5,654 SGD
View
Retailer 20
-
$7,736 SGD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
3dfaf108-81e9-4213-bfcc-42746fb8c38e · Oct 30
$8,016 SGD
$6,255 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from $3,890 SGDSave up to $1,765 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
$3,890 SGD