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Marquise|Natural|GIA

1.51ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1445475696

Certificate GIA 1445475696

Diamond specifications and retailer prices

From $7,410 NZD
As of November 6, 2026
Save $9,137 NZD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,547 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1445475696. Listed at 16 retailers as of November 5, 2026, with prices from $7,410 to $16,547, a $9,137 spread on the same certified stone. NZ Jewellers lists it at $16,547. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1445475696
Dimensions12.03 × 6.11 × 3.49 mm
L/W Ratio1.97
Key to symbols
Feather
Top View
12.03 mm6.11 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1445475696
Side View
Table 58.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.1%

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: Nov 6
Current: $16,547 NZD|Low: $7,342 NZD|High: $16,547 NZD|Avg: $10,463 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 10$7,410 NZD
Retailer 6$7,863 NZD
Retailer 4$8,711 NZD
Retailer 12$9,425 NZD
Retailer 7$9,599 NZD
Retailer 2$9,651 NZD
Retailer 11$9,894 NZD
Retailer 13$9,894 NZD
Retailer 3$10,446 NZD
Retailer 8$11,134 NZD
Retailer 5$11,415 NZD
Retailer 9$15,757 NZD
NZ Jewellers$16,547 NZD

31 data points across 13 retailers

16 retailers$7,410 NZD to $16,547 NZD

A
Cheapest Retailer
-
$7,410 NZD
A
Retailer 2
-
$7,863 NZD
View
B+
Retailer 3
-
$8,711 NZD
View
B+
Retailer 4
-
$8,720 NZD
View
Retailer 5
-
$9,198 NZD
View
Price last confirmed 90 days ago
B+
Retailer 6
-
$9,326 NZD
View
Retailer 7
-
$9,425 NZD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
$9,599 NZD
View
B+
Retailer 9
-
$9,651 NZD
View
B+
Retailer 10
-
$9,894 NZD
View
B+
Retailer 11
-
$9,894 NZD
View
B+
Retailer 12
-
$10,446 NZD
View
B
Retailer 13
-
$11,134 NZD
View
B
Retailer 14
-
$11,415 NZD
View
B
Retailer 15
-
$15,757 NZD
View
Most Expensive
B
NZ Jewellers
65f84ebf-99d5-4b50-bf6a-d5555edcd2fd · Nov 5
$16,547 NZD
$9,173 USD
View
15 more retailers have this diamond
Prices start from $7,410 NZDSave up to $9,137 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
$7,410 NZD