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Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 7561213708

Certificate GIA 7561213708

Diamond specifications and retailer prices

From $7,766 SGD
As of October 31, 2026
Save $7,104 SGD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,870 SGD at With Clarity · As of October 30, 2026
View at With Clarity

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 7561213708. Listed at 13 retailers as of October 30, 2026, with prices from $7,766 to $14,870, a $7,104 spread on the same certified stone. With Clarity lists it at $14,870. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.73°
Pavilion angle39.89°
OriginNatural
Grading LabGIA
CertificateGIA 7561213708
Dimensions12.20 × 5.81 × 3.55 mm
L/W Ratio2.10
Culet sizeNone
Top View
12.20 mm5.81 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7561213708
Side View
Table 60.0%Crown 37.73°Girdle: THN-THKPavilion 39.89°Culet: NoneDepth 61.0%

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: $12,231 SGD|Low: $7,766 SGD|High: $15,719 SGD|Avg: $10,685 SGD|-8.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 30, 2026
Retailer 11$7,766 SGD
Retailer 10$8,627 SGD
Retailer 4$8,805 SGD
Retailer 9$8,997 SGD
Retailer 7$9,130 SGD
Retailer 8$9,255 SGD
Retailer 5$9,596 SGD
Retailer 2$10,748 SGD
Retailer 12$10,835 SGD
Retailer 3$10,955 SGD
Retailer 6$10,991 SGD
Retailer 1$12,231 SGD
With Clarity$14,870 SGD

27 data points across 13 retailers

13 retailers$7,766 SGD to $14,870 SGD

A
Cheapest Retailer
-
$7,766 SGD
B+
Retailer 2
-
$8,627 SGD
View
A
Retailer 3
-
$8,805 SGD
$6,885 USD
View
A
Retailer 4
-
$8,997 SGD
$7,035 USD
View
B+
Retailer 5
-
$9,130 SGD
$7,139 USD
View
B+
Retailer 6
-
$9,255 SGD
$7,237 USD
View
B+
Retailer 7
-
$9,596 SGD
£5,908 GBP
View
B+
Retailer 8
-
$10,748 SGD
$8,404 USD
View
B+
Retailer 9
-
$10,835 SGD
$8,472 USD
View
B+
Retailer 10
-
$10,955 SGD
$8,566 USD
View
B+
Retailer 11
-
$10,991 SGD
€8,185 EUR
View
B+
Retailer 12
-
$12,231 SGD
$9,564 USD
View
Most Expensive
B
With Clarity
7561213708 · Oct 30
$14,870 SGD
$11,627 USD
View
12 more retailers have this diamond
Prices start from $7,766 SGDSave up to $7,104 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
1.51ct Marquise
$7,766 SGD