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Marquise|Natural|GIA

1.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 1246080001

Certificate GIA 1246080001

Diamond specifications and retailer prices

From $5,056 USD
HK$39,500 HKD
As of October 30, 2026
Save $6,789 USD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,845 USD at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1246080001. Listed at 16 retailers as of October 27, 2026, with prices from $5,056 to $11,845, a $6,789 spread on the same certified stone. NZ Jewellers lists it at $11,845. 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
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1246080001
Dimensions11.81 × 6.04 × 3.78 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
11.81 mm6.04 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1246080001
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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 30
Current: $11,845 USD|Low: $4,979 USD|High: $11,938 USD|Avg: $6,919 USD|-0.8%
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
October 30, 2026
Retailer 6$5,056 USD
Retailer 14$5,117 USD
Retailer 16$5,140 USD
Retailer 3$5,392 USD
Retailer 15$5,614 USD
Retailer 9$5,736 USD
Retailer 5$5,845 USD
Retailer 8$5,922 USD
Retailer 4$6,006 USD
Retailer 7$6,040 USD
Retailer 2$6,329 USD
Retailer 10$6,534 USD
Retailer 11$6,948 USD
Retailer 13$7,726 USD
Retailer 17$10,325 USD
Retailer 12$10,489 USD
NZ Jewellers$11,845 USD

28 data points across 17 retailers

16 retailers$5,056 USD to $11,845 USD

B+
Cheapest Retailer
-
$5,056 USD
HK$39,500 HKD
B+
Retailer 2
-
$5,117 USD
View
A
Retailer 3
-
$5,140 USD
View
B+
Retailer 4
-
$5,392 USD
View
B+
Retailer 5
-
$5,614 USD
View
Retailer 6
-
$5,736 USD
SGD 7,752 SGD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$5,845 USD
A$8,992 AUD
View
B+
Retailer 8
-
$6,006 USD
View
B+
Retailer 9
-
$6,040 USD
View
B+
Retailer 10
-
$6,329 USD
£4,983 GBP
View
B+
Retailer 11
-
$6,534 USD
View
B+
Retailer 12
-
$6,948 USD
£5,471 GBP
View
B
Retailer 13
-
$7,726 USD
€7,358 EUR
View
B
Retailer 14
-
$10,325 USD
View
B
Retailer 15
-
$10,489 USD
£8,259 GBP
View
Most Expensive
B
NZ Jewellers
e5d1e1db-5fcd-4df7-8994-c116cf367122 · Oct 27
$11,845 USD
View
15 more retailers have this diamond
Prices start from $5,056 USDSave up to $6,789 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
1.51ct Marquise
$5,056 USD