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Marquise|Natural|GIA

0.66ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 1557148705

Certificate GIA 1557148705

Diamond specifications and retailer prices

From $951 NZD
SGD 723 SGD
As of October 31, 2026
Save $868 NZD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,819 NZD at Frank Darling · As of November 2, 2026
View at Frank Darling

About this 0.66ct natural marquise diamond

This 0.66ct natural marquise sits in the half to three-quarter carat band, graded H 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 1557148705. Listed at 9 retailers as of October 31, 2026, with prices from $951 to $1,819, a $868 spread on the same certified stone. Frank Darling lists it at $1,819. 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

0.66
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.67°
Pavilion angle39.39°
OriginNatural
Grading LabGIA
CertificateGIA 1557148705
Dimensions8.66 × 4.56 × 2.81 mm
L/W Ratio1.90
Culet sizeNone
Top View
8.66 mm4.56 mm0.66 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1557148705
Side View
Table 60.0%Crown 39.67°Girdle: VTN-VTKPavilion 39.39°Culet: NoneDepth 61.7%

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: $1,819 NZD|Low: $671 NZD|High: $2,021 NZD|Avg: $1,452 NZD|-8.1%
Frank Darling
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 11$786 NZD
Retailer 8$951 NZD
Retailer 9$1,064 NZD
Retailer 6$1,218 NZD
Retailer 12$1,340 NZD
Retailer 5$1,384 NZD
Retailer 7$1,489 NZD
Retailer 2$1,497 NZD
Retailer 4$1,528 NZD
Retailer 10$1,616 NZD
Frank Darling$1,819 NZD
Retailer 3$2,021 NZD

26 data points across 12 retailers

9 retailers$951 NZD to $1,819 NZD

A
Cheapest Retailer
-
$951 NZD
SGD 723 SGD
A
Retailer 2
-
$1,064 NZD
SGD 809 SGD
View
A
Retailer 3
-
$1,218 NZD
£540 GBP
View
A
Retailer 4
-
$1,384 NZD
$779 USD
View
A
Retailer 5
-
$1,489 NZD
$838 USD
View
A
Retailer 6
-
$1,497 NZD
€802 EUR
View
B+
Retailer 7
-
$1,528 NZD
$860 USD
View
B+
Retailer 8
-
$1,616 NZD
$909 USD
View
Most Expensive
B+
Frank Darling
2632130HK · Nov 2
$1,819 NZD
$1,023 USD
View
8 more retailers have this diamond
Prices start from $951 NZDSave up to $868 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
0.66ct Marquise
$951 NZD