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Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6392613089

Certificate GIA 6392613089

Diamond specifications and retailer prices

From $13,500 SGD
$10,560 USD
As of October 25, 2026
Save $13,014 SGD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $26,514 SGD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6392613089. Listed at 18 retailers as of October 25, 2026, with prices from $13,500 to $26,514, a $13,014 spread on the same certified stone. Diamond Quarter lists it at $26,514. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6392613089
Dimensions7.34 × 7.29 × 4.55 mm
L/W Ratio1.01
Top View
7.34 mm7.29 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6392613089
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: 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: Oct 25
Current: $16,413 SGD|Low: $12,730 SGD|High: $25,462 SGD|Avg: $18,163 SGD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5$13,500 SGD
Retailer 6$15,277 SGD
Retailer 8$15,277 SGD
Retailer 1$16,413 SGD
Retailer 2$16,550 SGD
Retailer 7$16,805 SGD
Retailer 3$18,490 SGD
Retailer 9$19,097 SGD
Retailer 4$23,987 SGD
Retailer 10$25,462 SGD

41 data points across 10 retailers

18 retailers$13,500 SGD to $26,514 SGD

B+
Cheapest Retailer
-
$13,500 SGD
$10,560 USD
B+
Retailer 2
-
$13,938 SGD
$10,903 USD
View
B+
Retailer 3
-
$14,174 SGD
$11,087 USD
View
B+
Retailer 4
-
$14,386 SGD
CA$15,630 CAD
View
B+
Retailer 5
-
$15,277 SGD
$11,950 USD
View
B+
Retailer 6
-
$15,277 SGD
$11,950 USD
View
Final sale: no returns
B+
Retailer 7
-
$16,413 SGD
£10,109 GBP
View
B
Retailer 8
-
$16,550 SGD
$12,946 USD
View
B
Retailer 9
-
$16,805 SGD
$13,145 USD
View
B
Retailer 10
-
$17,667 SGD
$13,820 USD
View
B
Retailer 11
-
$17,667 SGD
$13,820 USD
View
B
Retailer 12
-
$17,687 SGD
$13,835 USD
View
B
Retailer 13
-
$18,256 SGD
$14,280 USD
View
B
Retailer 14
-
$18,490 SGD
€13,775 EUR
View
B
Retailer 15
-
$19,097 SGD
$14,938 USD
View
B
Retailer 16
-
$23,987 SGD
£14,774 GBP
View
B
Retailer 17
-
$25,462 SGD
$19,917 USD
View
Most Expensive
B
Diamond Quarter
1.51SI2D638976D1N · Oct 29
$26,514 SGD
£16,331 GBP
View
17 more retailers have this diamond
Prices start from $13,500 SGDSave up to $13,014 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 Round
$13,500 SGD