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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 $12,814 NZD
$7,210 USD
As of November 1, 2026
Save $10,552 NZD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $23,366 NZD 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 $12,814 to $23,366, a $10,552 spread on the same certified stone. MOH London lists it at $23,366. 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: $23,366 NZD|Low: $12,814 NZD|High: $23,646 NZD|Avg: $17,212 NZD|-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 3, 2026
Retailer 6$12,814 NZD
Retailer 8$13,262 NZD
Retailer 9$15,056 NZD
Retailer 2$15,648 NZD
Retailer 7$15,807 NZD
Retailer 11$16,031 NZD
Retailer 12$16,031 NZD
Retailer 3$16,564 NZD
Retailer 5$18,316 NZD
Retailer 10$18,461 NZD
Retailer 4$21,066 NZD
MOH London$23,366 NZD

32 data points across 12 retailers

12 retailers$12,814 NZD to $23,366 NZD

B+
Cheapest Retailer
-
$12,814 NZD
$7,210 USD
B+
Retailer 2
-
$13,262 NZD
$7,462 USD
View
B
Retailer 3
-
$15,056 NZD
$8,471 USD
View
B+
Retailer 4
-
$15,648 NZD
£6,933 GBP
View
Retailer 5
-
$15,807 NZD
A$13,683 AUD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$16,031 NZD
$9,020 USD
View
B
Retailer 7
-
$16,031 NZD
$9,020 USD
View
B
Retailer 8
-
$16,564 NZD
$9,320 USD
View
B
Retailer 9
-
$16,771 NZD
$9,436 USD
View
B
Retailer 10
-
$18,316 NZD
€9,815 EUR
View
Retailer 11
-
$18,461 NZD
$10,387 USD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
05593552D · Nov 2
$23,366 NZD
£10,352 GBP
View
11 more retailers have this diamond
Prices start from $12,814 NZDSave up to $10,552 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.

B+
1.51ct Marquise
$12,814 NZD