Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2557053736

Certificate GIA 2557053736

Diamond specifications and retailer prices

From $16,146 CAD
£9,098 GBP
As of October 28, 2026
14 retailers carry this diamond
Most expensive: $22,638 CAD at NZ Jewellers · As of October 21, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557053736. Listed at 14 retailers as of October 28, 2026. 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

1.51
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle40.83°
Pavilion angle39.35°
OriginNatural
Grading LabGIA
CertificateGIA 2557053736
Dimensions11.09 × 5.97 × 3.68 mm
L/W Ratio1.86
Top View
11.09 mm5.97 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557053736
Side View
Table 60.0%Crown 40.83°Girdle: THN-VTKPavilion 39.35°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $22,638 CAD|Low: $13,443 CAD|High: $22,638 CAD|Avg: $16,720 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 4$13,443 CAD
Retailer 11$13,583 CAD
Retailer 12$14,715 CAD
Retailer 6$14,937 CAD
Retailer 10$14,941 CAD
Retailer 7$15,299 CAD
Retailer 2$16,146 CAD
Retailer 3$16,978 CAD
Retailer 5$16,995 CAD
Retailer 9$19,715 CAD
Retailer 8$21,327 CAD
NZ Jewellers$22,638 CAD

37 data points across 12 retailers

14 retailers

Retailer 1
-
$12,603 CAD
$9,019 USD
Price last confirmed 10 days ago
Retailer 2
-
$13,443 CAD
$9,620 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$13,583 CAD
$9,720 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$13,696 CAD
$9,801 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$14,715 CAD
$10,530 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$14,937 CAD
A$16,445 AUD
View
Price last confirmed 11 days ago
Retailer 7
-
$14,941 CAD
$10,692 USD
View
Price last confirmed 17 days ago
Retailer 8
-
$15,574 CAD
$11,145 USD
View
Price last confirmed 12 days ago
B
Retailer 9
-
$16,146 CAD
£9,098 GBP
View
Retailer 10
-
$16,978 CAD
$12,150 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$17,873 CAD
$12,790 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$19,715 CAD
ZAR 227,926 ZAR
View
Price last confirmed 16 days ago
Retailer 13
-
$21,327 CAD
£12,017 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
669feccd-75f5-4c5a-9ddc-19dd91e4f013 · Oct 21
$22,638 CAD
$16,200 USD
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from $16,146 CAD

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
$16,146 CAD