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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2554189099

Certificate GIA 2554189099

Diamond specifications and retailer prices

From $2,840 SGD
As of October 31, 2026
Save $2,461 SGD (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,301 SGD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554189099. Listed at 12 retailers as of October 31, 2026, with prices from $2,840 to $5,301, a $2,461 spread on the same certified stone. Helzberg Diamonds lists it at $5,301. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554189099
Dimensions6.87 × 6.11 × 4.21 mm
L/W Ratio1.12
Top View
6.87 mm6.11 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554189099
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,301 SGD|Low: $2,840 SGD|High: $5,750 SGD|Avg: $3,841 SGD|-7.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$2,840 SGD
Retailer 7$3,032 SGD
Retailer 6$3,085 SGD
Retailer 4$3,319 SGD
Retailer 2$3,333 SGD
Retailer 12$3,359 SGD
Retailer 10$3,631 SGD
Retailer 8$3,658 SGD
Retailer 11$3,792 SGD
Retailer 5$4,351 SGD
Retailer 3$5,278 SGD
Helzberg Diamonds$5,301 SGD

28 data points across 12 retailers

12 retailers$2,840 SGD to $5,301 SGD

A
Cheapest Retailer
-
$2,840 SGD
A
Retailer 2
-
$3,032 SGD
$2,371 USD
View
A
Retailer 3
-
$3,085 SGD
$2,412 USD
View
A
Retailer 4
-
$3,319 SGD
$2,595 USD
View
A
Retailer 5
-
$3,333 SGD
£2,052 GBP
View
A
Retailer 6
-
$3,359 SGD
View
A
Retailer 7
-
$3,631 SGD
$2,839 USD
View
A
Retailer 8
-
$3,658 SGD
$2,860 USD
View
A
Retailer 9
-
$3,792 SGD
$2,965 USD
View
A
Retailer 10
-
$4,351 SGD
$3,402 USD
View
A
Retailer 11
-
$5,278 SGD
$4,127 USD
View
Most Expensive
A
Helzberg Diamonds
XZRILLKHOPGPP · Nov 1
$5,301 SGD
$4,145 USD
View
11 more retailers have this diamond
Prices start from $2,840 SGDSave up to $2,461 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 Cushion
$2,840 SGD