Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6541866524

Certificate GIA 6541866524

Diamond specifications and retailer prices

From $10,855 USD
As of November 1, 2026
Save $7,972 USD (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $18,827 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541866524. Listed at 21 retailers as of October 30, 2026, with prices from $10,855 to $18,827, a $7,972 spread on the same certified stone. NZ Jewellers lists it at $18,827. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle31.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541866524
Dimensions11.60 × 6.11 × 3.68 mm
L/W Ratio1.90
Top View
11.60 mm6.11 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541866524
Side View
Table 62.0%Crown 37.8°Girdle: MED-THKPavilion 31.8°Culet: NoneDepth 60.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,827 USD|Low: $10,855 USD|High: $21,025 USD|Avg: $13,721 USD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 8$10,855 USD
Retailer 12$10,931 USD
Retailer 6$11,530 USD
Retailer 11$11,569 USD
Retailer 5$11,948 USD
Retailer 13$12,217 USD
Retailer 7$12,270 USD
Retailer 21$12,285 USD
Retailer 18$12,469 USD
Retailer 2$12,728 USD
Retailer 9$13,241 USD
Retailer 19$13,300 USD
Retailer 20$13,508 USD
Retailer 4$13,779 USD
Retailer 3$13,818 USD
Retailer 10$13,838 USD
Retailer 17$14,028 USD
Retailer 16$16,596 USD
Retailer 14$17,295 USD
Retailer 15$17,643 USD
NZ Jewellers$18,827 USD

18 data points across 21 retailers

21 retailers$10,855 USD to $18,827 USD

B
Cheapest Retailer
-
$10,855 USD
B
Retailer 2
-
$10,931 USD
View
B
Retailer 3
-
$11,468 USD
SGD 15,497 SGD
View
B
Retailer 4
-
$11,530 USD
View
B
Retailer 5
-
$11,569 USD
View
B
Retailer 6
-
$11,948 USD
View
Final sale: no returns
B
Retailer 7
-
$12,217 USD
£9,620 GBP
View
B
Retailer 8
-
$12,270 USD
View
Retailer 9
-
$12,285 USD
A$18,900 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$12,469 USD
View
B
Retailer 11
-
$12,728 USD
£10,022 GBP
View
B
Retailer 12
-
$13,241 USD
View
B
Retailer 13
-
$13,300 USD
View
B
Retailer 14
-
$13,508 USD
View
B
Retailer 15
-
$13,779 USD
View
B
Retailer 16
-
$13,818 USD
View
B
Retailer 17
-
$13,838 USD
View
B
Retailer 18
-
$14,028 USD
View
B
Retailer 19
-
$16,596 USD
ZAR 268,109 ZAR
View
B
Retailer 20
-
$17,643 USD
£13,892 GBP
View
Most Expensive
B
NZ Jewellers
db655481-43c8-4edc-a9c7-ef95d9890cda · Oct 30
$18,827 USD
View
20 more retailers have this diamond
Prices start from $10,855 USDSave up to $7,972 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.

B
1.50ct Marquise
$10,855 USD