Marquise|Natural|GIA

1.71ct D SI2 Marquise Natural Diamond

ID • D/SI2 • GIA 5533790305

Certificate GIA 5533790305

Diamond specifications and retailer prices

From $12,389 USD
£9,755 GBP
As of November 1, 2026
Save $5,937 USD (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $18,326 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.71ct natural marquise diamond

This 1.71ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5533790305. Listed at 6 retailers as of October 30, 2026, with prices from $12,389 to $18,326, a $5,937 spread on the same certified stone. NZ Jewellers lists it at $18,326. 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

1.71
Carat
D
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.42°
Pavilion angle39.42°
OriginNatural
Grading LabGIA
CertificateGIA 5533790305
Dimensions12.31 × 6.40 × 3.81 mm
L/W Ratio1.92
Top View
12.31 mm6.40 mm1.71 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5533790305
Side View
Table 61.0%Crown 36.42°Girdle: STK-THKPavilion 39.42°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,326 USD|Low: $11,885 USD|High: $19,112 USD|Avg: $14,322 USD|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8$11,885 USD
Retailer 4$12,389 USD
Retailer 5$12,946 USD
Retailer 6$13,086 USD
Retailer 7$13,148 USD
Retailer 3$13,680 USD
Retailer 10$14,030 USD
Retailer 9$14,314 USD
Retailer 11$14,608 USD
Retailer 2$17,172 USD
NZ Jewellers$18,326 USD

32 data points across 11 retailers

6 retailers$12,389 USD to $18,326 USD

A
Cheapest Retailer
-
$12,389 USD
£9,755 GBP
B+
Retailer 2
-
$12,946 USD
View
B+
Retailer 3
-
$13,086 USD
View
B+
Retailer 4
-
$13,148 USD
View
B
Retailer 5
-
$17,172 USD
£13,521 GBP
View
Most Expensive
B
NZ Jewellers
153864bd-53e8-4578-8e92-270038998171 · Oct 30
$18,326 USD
View
5 more retailers have this diamond
Prices start from $12,389 USDSave up to $5,937 USD

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
1.71ct Marquise
$12,389 USD