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Marquise|Natural|GIA

1.00ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 2558810991

Certificate GIA 2558810991

Diamond specifications and retailer prices

From $3,033 SGD
$2,373 USD
As of October 31, 2026
Save $1,628 SGD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,749 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2558810991. Listed at 19 retailers as of October 31, 2026, with a 54% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558810991
Dimensions9.37 × 5.17 × 3.35 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Twinning Wisp, Needle, Indented Natural, Natural
Top View
9.37 mm5.17 mm1.00 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558810991
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 64.7%

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 31
Current: $4,661 SGD|Low: $2,815 SGD|High: $6,559 SGD|Avg: $4,225 SGD|+17.0%
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
Retailer 15
November 1, 2026
Retailer 15$2,815 SGD
Retailer 11$2,970 SGD
Retailer 9$3,033 SGD
Retailer 8$3,241 SGD
Retailer 14$3,384 SGD
Retailer 3$3,475 SGD
Retailer 7$3,613 SGD
Retailer 6$3,874 SGD
Retailer 4$3,942 SGD
Retailer 2$3,947 SGD
Retailer 5$4,091 SGD
Retailer 10$4,337 SGD
Retailer 1$4,661 SGD
Retailer 12$6,329 SGD
Retailer 13$6,527 SGD

34 data points across 15 retailers

19 retailers$3,033 SGD to $4,661 SGD

Retailer 1
-
$2,815 SGD
HK$17,200 HKD
Price last confirmed 12 days ago
Retailer 2
-
$2,970 SGD
₹221,234 INR
View
Price last confirmed 13 days ago
A
Retailer 3
-
$3,033 SGD
$2,373 USD
View
A
Retailer 4
-
$3,241 SGD
$2,535 USD
View
A
Retailer 5
-
$3,317 SGD
A$3,992 AUD
View
A
Retailer 6
-
$3,384 SGD
View
A
Retailer 7
-
$3,613 SGD
$2,826 USD
View
Retailer 8
-
$3,874 SGD
$3,030 USD
View
Price last confirmed 34 days ago
Retailer 9
-
$3,874 SGD
$3,030 USD
View
Price last confirmed 25 days ago
Retailer 10
-
$3,942 SGD
View
Price last confirmed 13 days ago
Retailer 11
-
$3,947 SGD
$3,087 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$4,023 SGD
$3,147 USD
View
Price last confirmed 32 days ago
Retailer 13
-
$4,091 SGD
$3,200 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$4,337 SGD
€3,231 EUR
View
Retailer 15
-
$4,469 SGD
$3,496 USD
View
Price last confirmed 34 days ago
B+
Retailer 16
-
$4,661 SGD
£2,871 GBP
View
Retailer 17
-
$6,329 SGD
£3,898 GBP
View
Price last confirmed 14 days ago
Retailer 18
-
$6,527 SGD
£4,020 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
d6dcdebc-04cf-4ccf-a5e1-225d36ef679d · Sep 28
$6,749 SGD
$5,279 USD
View
Price last confirmed 35 days ago
18 more retailers have this diamond
Prices start from $3,033 SGDSave up to $1,628 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
$3,033 SGD