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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 1555999788

Certificate GIA 1555999788

Diamond specifications and retailer prices

From $8,394 SGD
As of November 6, 2026
Save $10,307 SGD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,701 SGD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555999788. Listed at 15 retailers as of November 5, 2026, with prices from $8,394 to $18,701, a $10,307 spread on the same certified stone. NZ Jewellers lists it at $18,701. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555999788
Dimensions10.70 × 5.95 × 3.85 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
10.70 mm5.95 mm1.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555999788
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.7%

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: Nov 6
Current: $8,394 SGD|Low: $8,394 SGD|High: $15,770 SGD|Avg: $11,156 SGD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$8,394 SGD
Retailer 5$8,942 SGD
Retailer 3$10,318 SGD
Retailer 6$11,354 SGD
Retailer 2$11,523 SGD
Retailer 4$15,539 SGD

40 data points across 6 retailers

15 retailers$8,394 SGD to $18,701 SGD

A
Cheapest Retailer
-
$8,394 SGD
A
Retailer 2
-
$8,942 SGD
View
Final sale: no returns
B+
Retailer 3
-
$9,461 SGD
View
B+
Retailer 4
-
$9,663 SGD
View
A
Retailer 5
-
$10,318 SGD
View
Retailer 6
-
$10,321 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$10,419 SGD
View
B+
Retailer 8
-
$11,181 SGD
View
B+
Retailer 9
-
$11,354 SGD
View
B+
Retailer 10
-
$11,423 SGD
View
B+
Retailer 11
-
$11,523 SGD
View
B+
Retailer 12
-
$12,902 SGD
View
Retailer 13
-
$13,272 SGD
View
Price last confirmed 61 days ago
B
Retailer 14
-
$15,539 SGD
View
Most Expensive
B
NZ Jewellers
218bb830-27e3-44fe-b6b1-239dfe633603 · Nov 5
$18,701 SGD
$14,592 USD
View
14 more retailers have this diamond
Prices start from $8,394 SGDSave up to $10,307 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
$8,394 SGD