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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 $10,793 NZD
SGD 8,206 SGD
As of October 31, 2026
Save $9,872 NZD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,665 NZD 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 $10,793 to $20,665, a $9,872 spread on the same certified stone. With Clarity lists it at $20,665. 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: $16,998 NZD|Low: $10,793 NZD|High: $21,845 NZD|Avg: $14,850 NZD|-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$10,793 NZD
Retailer 10$11,989 NZD
Retailer 4$12,237 NZD
Retailer 9$12,503 NZD
Retailer 7$12,688 NZD
Retailer 8$12,862 NZD
Retailer 5$13,335 NZD
Retailer 2$14,937 NZD
Retailer 12$15,057 NZD
Retailer 3$15,224 NZD
Retailer 6$15,275 NZD
Retailer 1$16,998 NZD
With Clarity$20,665 NZD

27 data points across 13 retailers

13 retailers$10,793 NZD to $20,665 NZD

A
Cheapest Retailer
-
$10,793 NZD
SGD 8,206 SGD
B+
Retailer 2
-
$11,989 NZD
SGD 9,116 SGD
View
A
Retailer 3
-
$12,237 NZD
$6,885 USD
View
A
Retailer 4
-
$12,503 NZD
$7,035 USD
View
B+
Retailer 5
-
$12,688 NZD
$7,139 USD
View
B+
Retailer 6
-
$12,862 NZD
$7,237 USD
View
B+
Retailer 7
-
$13,335 NZD
£5,908 GBP
View
B+
Retailer 8
-
$14,937 NZD
$8,404 USD
View
B+
Retailer 9
-
$15,057 NZD
$8,472 USD
View
B+
Retailer 10
-
$15,224 NZD
$8,566 USD
View
B+
Retailer 11
-
$15,275 NZD
€8,185 EUR
View
B+
Retailer 12
-
$16,998 NZD
$9,564 USD
View
Most Expensive
B
With Clarity
7561213708 · Oct 30
$20,665 NZD
$11,627 USD
View
12 more retailers have this diamond
Prices start from $10,793 NZDSave up to $9,872 NZD

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
$10,793 NZD