Marquise|Natural|GIA

1.30ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6551891799

Certificate GIA 6551891799

Diamond specifications and retailer prices

From $11,145 NZD
As of November 1, 2026
Save $8,758 NZD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,951 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551891799. Listed at 13 retailers as of November 1, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551891799
Dimensions10.88 × 5.73 × 3.66 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
10.88 mm5.73 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551891799
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.9%

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 1
Current: $14,726 NZD|Low: $11,145 NZD|High: $20,196 NZD|Avg: $15,079 NZD|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$11,145 NZD
Retailer 3$13,374 NZD
Retailer 6$13,721 NZD
Retailer 8$14,338 NZD
Retailer 9$14,338 NZD
Retailer 1$14,726 NZD
Retailer 10$14,818 NZD
Retailer 2$15,775 NZD
Retailer 4$17,471 NZD
Retailer 5$19,902 NZD

32 data points across 10 retailers

13 retailers$11,145 NZD to $19,902 NZD

A
Cheapest Retailer
-
$11,145 NZD
Retailer 2
-
$12,974 NZD
View
Price last confirmed 45 days ago
B+
Retailer 3
-
$13,374 NZD
View
Retailer 4
-
$13,721 NZD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$14,338 NZD
View
B+
Retailer 6
-
$14,338 NZD
View
B+
Retailer 7
-
$14,726 NZD
View
B+
Retailer 8
-
$14,818 NZD
View
Retailer 9
-
$14,969 NZD
View
Price last confirmed 43 days ago
Retailer 10
-
$15,775 NZD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$17,471 NZD
View
B
Retailer 12
-
$19,902 NZD
View
Most Expensive
NZ Jewellers
c10a64fd-b190-4958-b15c-cc64b9bcd4a7 · Sep 25
$23,951 NZD
$13,464 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $11,145 NZDSave up to $8,758 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
1.30ct Marquise
$11,145 NZD