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Marquise|Natural|GIA

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 1186263478

Certificate GIA 1186263478

Diamond specifications and retailer prices

From $15,386 NZD
$8,657 USD
As of November 1, 2026
Save $12,340 NZD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $27,726 NZD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1186263478. Listed at 14 retailers as of October 30, 2026, with prices from $15,386 to $27,726, a $12,340 spread on the same certified stone. NZ Jewellers lists it at $27,726. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1186263478
Dimensions10.65 × 6.09 × 3.81 mm
L/W Ratio1.75
Culet sizeSmall
Top View
10.65 mm6.09 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1186263478
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: SmallDepth 62.5%

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: $27,726 NZD|Low: $15,386 NZD|High: $27,726 NZD|Avg: $20,359 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
November 2, 2026
Retailer 4$15,386 NZD
Retailer 8$16,636 NZD
Retailer 3$16,774 NZD
Retailer 9$18,022 NZD
Retailer 5$18,055 NZD
Retailer 7$18,299 NZD
Retailer 2$19,972 NZD
Retailer 10$20,794 NZD
Retailer 11$21,893 NZD
Retailer 12$23,894 NZD
Retailer 6$25,980 NZD
NZ Jewellers$27,726 NZD

41 data points across 12 retailers

14 retailers$15,386 NZD to $27,726 NZD

B+
Cheapest Retailer
-
$15,386 NZD
$8,657 USD
B+
Retailer 2
-
$15,574 NZD
$8,763 USD
View
B+
Retailer 3
-
$16,131 NZD
CA$12,606 CAD
View
B+
Retailer 4
-
$16,636 NZD
$9,360 USD
View
B+
Retailer 5
-
$16,774 NZD
$9,438 USD
View
B+
Retailer 6
-
$18,022 NZD
$10,140 USD
View
B+
Retailer 7
-
$18,055 NZD
£7,999 GBP
View
B+
Retailer 8
-
$18,299 NZD
$10,296 USD
View
B
Retailer 9
-
$19,177 NZD
$10,790 USD
View
B
Retailer 10
-
$19,972 NZD
€10,702 EUR
View
B
Retailer 11
-
$20,794 NZD
$11,700 USD
View
Retailer 12
-
$21,893 NZD
$12,318 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$25,980 NZD
£11,510 GBP
View
Most Expensive
B
NZ Jewellers
820b5d22-e9e2-4532-819b-2b1403d0e7c4 · Oct 30
$27,726 NZD
$15,600 USD
View
13 more retailers have this diamond
Prices start from $15,386 NZDSave up to $12,340 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
$15,386 NZD