CaratHunter
Plans
Marquise|Natural|GIA

1.51ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 6552832032

Certificate GIA 6552832032

Diamond specifications and retailer prices

From $9,707 SGD
$7,590 USD
As of November 1, 2026
Save $7,157 SGD (42%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $17,997 SGD at NZ Jewellers · As of October 17, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552832032. Listed at 16 retailers as of November 1, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.79°
Pavilion angle37.53°
OriginNatural
Grading LabGIA
CertificateGIA 6552832032
Dimensions10.97 × 5.92 × 3.63 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.97 mm5.92 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552832032
Side View
Table 60.0%Crown 40.79°Girdle: STK-VTKPavilion 37.53°Culet: NoneDepth 61.4%

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: $17,997 SGD|Low: $9,299 SGD|High: $17,997 SGD|Avg: $12,355 SGD
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
November 2, 2026
Retailer 8$9,299 SGD
Retailer 6$9,707 SGD
Retailer 9$9,795 SGD
Retailer 7$10,563 SGD
Retailer 12$10,639 SGD
Retailer 15$11,247 SGD
Retailer 10$11,818 SGD
Retailer 13$12,112 SGD
Retailer 17$12,155 SGD
Retailer 14$12,545 SGD
Retailer 4$12,891 SGD
Retailer 16$12,891 SGD
Retailer 3$13,228 SGD
Retailer 5$13,313 SGD
Retailer 2$13,548 SGD
Retailer 11$16,864 SGD
NZ Jewellers$17,997 SGD

23 data points across 17 retailers

16 retailers$9,707 SGD to $16,864 SGD

B+
Cheapest Retailer
-
$9,707 SGD
$7,590 USD
B+
Retailer 2
-
$10,563 SGD
$8,259 USD
View
B+
Retailer 3
-
$10,639 SGD
CA$11,554 CAD
View
B
Retailer 4
-
$11,247 SGD
$8,794 USD
View
B
Retailer 5
-
$11,818 SGD
£7,276 GBP
View
B
Retailer 6
-
$12,112 SGD
$9,471 USD
View
B
Retailer 7
-
$12,155 SGD
$9,504 USD
View
B
Retailer 8
-
$12,545 SGD
$9,809 USD
View
B
Retailer 9
-
$12,891 SGD
$10,080 USD
View
B
Retailer 10
-
$12,891 SGD
$10,080 USD
View
Retailer 11
-
$13,228 SGD
$10,343 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$13,313 SGD
$10,410 USD
View
B
Retailer 13
-
$13,548 SGD
€10,089 EUR
View
B
Retailer 14
-
$16,864 SGD
£10,383 GBP
View
Retailer 15
-
$17,997 SGD
$14,072 USD
View
Price last confirmed 30 days ago
Most Expensive
NZ Jewellers
593bb57d-3455-48da-a112-0e600b6ca513 · Oct 17
$17,997 SGD
$14,072 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $9,707 SGDSave up to $7,157 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.

B+
1.51ct Marquise
$9,707 SGD