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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 6502138329

Certificate GIA 6502138329

Diamond specifications and retailer prices

From $4,015 SGD
As of November 6, 2026
Save $4,384 SGD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,400 SGD at NZ Jewellers · As of November 5, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6502138329. Listed at 14 retailers as of November 5, 2026, with prices from $4,015 to $8,400, a $4,384 spread on the same certified stone. NZ Jewellers lists it at $8,400. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryFair
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6502138329
Dimensions9.08 × 5.45 × 3.23 mm
L/W Ratio1.67
Top View
9.08 mm5.45 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryFair
FluorescenceNone
CertificateGIA 6502138329
Side View
Table 61.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 59.2%

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: $8,400 SGD|Low: $4,279 SGD|High: $8,400 SGD|Avg: $5,342 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
November 6, 2026
Retailer 4$4,279 SGD
Retailer 3$4,300 SGD
Retailer 9$4,338 SGD
Retailer 2$4,537 SGD
Retailer 5$4,620 SGD
Retailer 11$4,821 SGD
Retailer 13$4,821 SGD
Retailer 7$4,960 SGD
Retailer 10$5,006 SGD
Retailer 6$5,287 SGD
Retailer 12$5,563 SGD
Retailer 8$8,039 SGD
NZ Jewellers$8,400 SGD

42 data points across 13 retailers

14 retailers$4,015 SGD to $8,400 SGD

B+
Cheapest Retailer
-
$4,015 SGD
B+
Retailer 2
-
$4,279 SGD
View
B+
Retailer 3
-
$4,300 SGD
View
B+
Retailer 4
-
$4,338 SGD
View
B
Retailer 5
-
$4,537 SGD
View
B
Retailer 6
-
$4,620 SGD
View
B
Retailer 7
-
$4,821 SGD
View
Retailer 8
-
$4,821 SGD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$4,960 SGD
View
B
Retailer 10
-
$5,006 SGD
View
B
Retailer 11
-
$5,287 SGD
View
B
Retailer 12
-
$5,563 SGD
View
C
Retailer 13
-
$8,039 SGD
View
Most Expensive
C
NZ Jewellers
6d204569-6177-4360-a885-dd2b9b3973a1 · Nov 5
$8,400 SGD
$6,554 USD
View
13 more retailers have this diamond
Prices start from $4,015 SGDSave up to $4,384 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
$4,015 SGD