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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2547653720

Certificate GIA 2547653720

Diamond specifications and retailer prices

From $9,221 SGD
$7,210 USD
As of November 1, 2026
Save $7,593 SGD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $16,814 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 2547653720. Listed at 12 retailers as of November 1, 2026, with prices from $9,221 to $16,814, a $7,593 spread on the same certified stone. MOH London lists it at $16,814. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2547653720
Dimensions10.55 × 5.97 × 3.75 mm
L/W Ratio1.77
Top View
10.55 mm5.97 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2547653720
Side View
Table 57.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.8%

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 1
Current: $16,814 SGD|Low: $9,221 SGD|High: $17,015 SGD|Avg: $12,394 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$9,221 SGD
Retailer 8$9,543 SGD
Retailer 9$10,834 SGD
Retailer 5$11,167 SGD
Retailer 7$11,374 SGD
Retailer 11$11,536 SGD
Retailer 12$11,536 SGD
Retailer 3$11,919 SGD
Retailer 2$13,180 SGD
Retailer 10$13,284 SGD
Retailer 4$15,159 SGD
MOH London$16,814 SGD

31 data points across 12 retailers

12 retailers$9,221 SGD to $16,814 SGD

B+
Cheapest Retailer
-
$9,221 SGD
$7,210 USD
B+
Retailer 2
-
$9,543 SGD
$7,462 USD
View
B
Retailer 3
-
$10,834 SGD
$8,471 USD
View
B+
Retailer 4
-
$11,167 SGD
£6,875 GBP
View
Retailer 5
-
$11,374 SGD
A$13,683 AUD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$11,536 SGD
$9,020 USD
View
B
Retailer 7
-
$11,536 SGD
$9,020 USD
View
B
Retailer 8
-
$11,919 SGD
$9,320 USD
View
B
Retailer 9
-
$12,068 SGD
$9,436 USD
View
B
Retailer 10
-
$13,180 SGD
€9,815 EUR
View
Retailer 11
-
$13,284 SGD
$10,387 USD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
05593552D · Nov 2
$16,814 SGD
£10,352 GBP
View
11 more retailers have this diamond
Prices start from $9,221 SGDSave up to $7,593 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+
1.51ct Marquise
$9,221 SGD