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Marquise|Natural|GIA

1.02ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 7542390407

Certificate GIA 7542390407

Diamond specifications and retailer prices

From $4,275 SGD
£2,632 GBP
As of November 3, 2026
Save $3,472 SGD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,216 SGD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.02ct natural marquise diamond

This 1.02ct 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 7542390407. Listed at 11 retailers as of November 2, 2026, with a 81% 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

1.02
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle34.47°
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 7542390407
Dimensions11.67 × 5.07 × 2.92 mm
L/W Ratio2.30
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Needle
Top View
11.67 mm5.07 mm1.02 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7542390407
Side View
Table 63.0%Crown 34.47°GirdlePavilion 39.6°CuletDepth 57.6%

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: $4,275 SGD|Low: $4,218 SGD|High: $7,981 SGD|Avg: $5,253 SGD|-24.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 1$4,275 SGD
Retailer 5$4,282 SGD
Retailer 2$4,519 SGD
Retailer 4$4,521 SGD
Retailer 6$5,051 SGD
Retailer 7$5,734 SGD
Retailer 3$7,747 SGD

39 data points across 7 retailers

11 retailers$4,275 SGD to $7,747 SGD

B+
Cheapest Retailer
-
$4,275 SGD
£2,632 GBP
B+
Retailer 2
-
$4,282 SGD
$3,348 USD
View
B+
Retailer 3
-
$4,519 SGD
£2,782 GBP
View
B+
Retailer 4
-
$4,521 SGD
$3,535 USD
View
Retailer 5
-
$4,715 SGD
$3,687 USD
View
Price last confirmed 38 days ago
Retailer 6
-
$4,715 SGD
$3,687 USD
View
Price last confirmed 26 days ago
Retailer 7
-
$4,897 SGD
$3,829 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$5,051 SGD
A$6,076 AUD
View
Price last confirmed 25 days ago
B
Retailer 9
-
$7,747 SGD
£4,770 GBP
View
Retailer 10
-
$8,216 SGD
$6,424 USD
View
Price last confirmed 27 days ago
Most Expensive
NZ Jewellers
6d6e99fe-0787-4fff-9ef9-05fdda53dd27 · Sep 27
$8,216 SGD
$6,424 USD
View
Price last confirmed 36 days ago
10 more retailers have this diamond
Prices start from $4,275 SGDSave up to $3,472 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+
1.02ct Marquise
$4,275 SGD