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Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 6452767979

Certificate GIA 6452767979

Diamond specifications and retailer prices

From $14,024 SGD
$10,970 USD
As of November 1, 2026
Save $12,076 SGD (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $26,100 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6452767979. Listed at 12 retailers as of October 30, 2026, with prices from $14,024 to $26,100, a $12,076 spread on the same certified stone. NZ Jewellers lists it at $26,100. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6452767979
Dimensions11.20 × 6.10 × 3.80 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Indented Natural, Needle
Top View
11.20 mm6.10 mm1.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6452767979
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.2%

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: $18,888 SGD|Low: $14,024 SGD|High: $24,753 SGD|Avg: $18,631 SGD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$14,024 SGD
Retailer 7$16,705 SGD
Retailer 2$16,708 SGD
Retailer 5$17,049 SGD
Retailer 8$17,618 SGD
Retailer 1$18,888 SGD
Retailer 4$23,007 SGD
Retailer 3$24,457 SGD

44 data points across 8 retailers

12 retailers$14,024 SGD to $26,100 SGD

B+
Cheapest Retailer
-
$14,024 SGD
$10,970 USD
B
Retailer 2
-
$15,660 SGD
$12,250 USD
View
B
Retailer 3
-
$16,705 SGD
$13,067 USD
View
B
Retailer 4
-
$16,708 SGD
£10,291 GBP
View
B
Retailer 5
-
$16,966 SGD
$13,271 USD
View
Retailer 6
-
$17,049 SGD
A$20,518 AUD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$17,618 SGD
$13,781 USD
View
B
Retailer 8
-
$18,411 SGD
$14,402 USD
View
B
Retailer 9
-
$18,888 SGD
€14,071 EUR
View
B
Retailer 10
-
$23,007 SGD
ZAR 290,738 ZAR
View
B
Retailer 11
-
$24,457 SGD
£15,064 GBP
View
Most Expensive
C
NZ Jewellers
e89861c4-af17-49d4-9b0d-118670f8c394 · Oct 30
$26,100 SGD
$20,416 USD
View
11 more retailers have this diamond
Prices start from $14,024 SGDSave up to $12,076 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
$14,024 SGD