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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564234109

Certificate GIA 2564234109

Diamond specifications and retailer prices

From $12,322 SGD
HK$75,300 HKD
As of October 31, 2026
Save $11,100 SGD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $23,422 SGD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564234109. Listed at 11 retailers as of October 30, 2026, with prices from $12,322 to $23,422, a $11,100 spread on the same certified stone. NZ Jewellers lists it at $23,422. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.04°
OriginNatural
Grading LabGIA
CertificateGIA 2564234109
Dimensions12.15 × 5.72 × 3.73 mm
L/W Ratio2.12
Key to symbols
Twinning Wisp, Crystal, Feather, Natural
Top View
12.15 mm5.72 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2564234109
Side View
Table 55.0%CrownGirdle: THK-VTKPavilion 41.04°Culet: NoneDepth 65.3%

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: $23,422 SGD|Low: $12,322 SGD|High: $23,635 SGD|Avg: $17,135 SGD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9$12,322 SGD
Retailer 7$13,612 SGD
Retailer 2$14,626 SGD
Retailer 8$15,770 SGD
Retailer 11$16,696 SGD
Retailer 3$16,958 SGD
Retailer 5$17,294 SGD
Retailer 6$17,359 SGD
Retailer 4$21,343 SGD
Retailer 10$22,266 SGD
NZ Jewellers$23,422 SGD

11 data points across 11 retailers

11 retailers$12,322 SGD to $23,422 SGD

A
Cheapest Retailer
-
$12,322 SGD
HK$75,300 HKD
B+
Retailer 2
-
$13,612 SGD
€10,141 EUR
View
B+
Retailer 3
-
$14,626 SGD
$11,441 USD
View
B+
Retailer 4
-
$15,770 SGD
£9,713 GBP
View
B
Retailer 5
-
$16,696 SGD
$13,060 USD
View
B+
Retailer 6
-
$16,958 SGD
$13,265 USD
View
B+
Retailer 7
-
$17,294 SGD
$13,528 USD
View
B+
Retailer 8
-
$17,359 SGD
€12,932 EUR
View
B
Retailer 9
-
$21,343 SGD
$16,695 USD
View
B
Retailer 10
-
$22,266 SGD
£13,714 GBP
View
Most Expensive
B
NZ Jewellers
221050fd-396e-4ec7-8e7b-c1425e163983 · Oct 30
$23,422 SGD
$18,321 USD
View
10 more retailers have this diamond
Prices start from $12,322 SGDSave up to $11,100 SGD

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
1.51ct Marquise
$12,322 SGD