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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6551543873

Certificate GIA 6551543873

Diamond specifications and retailer prices

From €8,445 EUR
$9,472 USD
As of November 1, 2026
Save €6,725 EUR (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €15,170 EUR at NZ Jewellers · As of October 30, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551543873. Listed at 17 retailers as of October 30, 2026, with prices from €8,445 to €15,170, a €6,725 spread on the same certified stone. NZ Jewellers lists it at €15,170. 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

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.97°
Pavilion angle41.43°
OriginNatural
Grading LabGIA
CertificateGIA 6551543873
Dimensions11.30 × 5.97 × 3.78 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.30 mm5.97 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551543873
Side View
Table 60.0%Crown 36.97°Girdle: THN-THKPavilion 41.43°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €10,256 EUR|Low: €9,751 EUR|High: €14,387 EUR|Avg: €11,210 EUR|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3€9,751 EUR
Retailer 9€9,861 EUR
Retailer 8€10,012 EUR
Retailer 7€10,122 EUR
Retailer 1€10,256 EUR
Retailer 6€10,437 EUR
Retailer 2€11,465 EUR
Retailer 5€13,372 EUR
Retailer 4€14,216 EUR

43 data points across 9 retailers

17 retailers€8,445 EUR to €15,170 EUR

B+
Cheapest Retailer
-
€8,445 EUR
$9,472 USD
B+
Retailer 2
-
€9,001 EUR
$10,095 USD
View
Retailer 3
-
€9,102 EUR
$10,209 USD
View
Price last confirmed 17 days ago
Retailer 4
-
€9,178 EUR
$10,294 USD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
€9,709 EUR
$10,890 USD
View
B+
Retailer 6
-
€9,751 EUR
£8,611 GBP
View
B+
Retailer 7
-
€9,861 EUR
$11,060 USD
View
B
Retailer 8
-
€10,012 EUR
$11,230 USD
View
Retailer 9
-
€10,122 EUR
A$17,466 AUD
View
Price last confirmed 29 days ago
B+
Retailer 10
-
€10,256 EUR
£9,057 GBP
View
B+
Retailer 11
-
€10,437 EUR
$11,706 USD
View
B
Retailer 12
-
€11,377 EUR
$12,761 USD
View
B
Retailer 13
-
€11,465 EUR
View
Retailer 14
-
€11,975 EUR
$13,431 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
€13,372 EUR
ZAR 242,301 ZAR
View
B
Retailer 16
-
€14,216 EUR
£12,555 GBP
View
Most Expensive
B
NZ Jewellers
04e58fd2-03b5-4f0a-8a02-4f720a580b04 · Oct 30
€15,170 EUR
$17,015 USD
View
16 more retailers have this diamond
Prices start from €8,445 EURSave up to €6,725 EUR

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
€8,445 EUR