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1.51ct H IF Round Natural Diamond

EX • H/IF • IGI 642436765

Shape and cutting style on the report: Round brilliant

Certificate IGI 642436765

Diamond specifications and retailer prices

From $10,600 SGD
As of November 5, 2026
Save $8,278 SGD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,879 SGD at Diamond Quarter · As of November 5, 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 642436765. Listed at 12 retailers as of November 5, 2026, with prices from $10,600 to $18,879, a $8,278 spread on the same certified stone. Diamond Quarter lists it at $18,879. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 642436765
Dimensions7.27 × 7.33 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.27 mm7.33 mm1.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642436765
Side View
Table 57.0%Crown 36.2°Girdle: MED-STKPavilion 41.1°CuletDepth 62.9%

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 5
Current: $18,879 SGD|Low: $10,600 SGD|High: $18,879 SGD|Avg: $13,706 SGD
Diamond Quarter
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$10,600 SGD
Retailer 8$11,240 SGD
Retailer 10$11,320 SGD
Retailer 2$11,332 SGD
Retailer 4$11,415 SGD
Retailer 3$12,538 SGD
Retailer 6$13,298 SGD
Retailer 5$14,963 SGD
Retailer 9$17,045 SGD
Diamond Quarter$18,879 SGD

4 data points across 10 retailers

12 retailers$10,600 SGD to $18,879 SGD

A
Cheapest Retailer
-
$10,600 SGD
B+
Retailer 2
-
$11,240 SGD
View
B+
Retailer 3
-
$11,320 SGD
View
Final sale: no returns
A
Retailer 4
-
$11,332 SGD
View
A
Retailer 5
-
$11,415 SGD
View
B+
Retailer 6
-
$12,453 SGD
View
B+
Retailer 7
-
$12,538 SGD
View
B+
Retailer 8
-
$13,298 SGD
View
B
Retailer 9
-
$14,151 SGD
View
B+
Retailer 10
-
$14,963 SGD
View
B
Retailer 11
-
$17,045 SGD
View
Most Expensive
B
Diamond Quarter
1.51IFH6465EB02N · Nov 5
$18,879 SGD
£11,599 GBP
View
11 more retailers have this diamond
Prices start from $10,600 SGDSave up to $8,278 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 Round
$10,600 SGD