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Emerald|Natural|GIA

0.51ct H SI1 Emerald Natural Diamond

ID • H/SI1 • GIA 2557428154

Certificate GIA 2557428154

Diamond specifications and retailer prices

From $497 SGD
$389 USD
As of October 30, 2026
Save $946 SGD (66%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,443 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct natural emerald diamond

This 0.51ct natural emerald sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557428154. Listed at 25 retailers as of October 26, 2026, with prices from $497 to $1,443, a $946 spread on the same certified stone. MOH London lists it at $1,443. 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

0.51
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.3°
Pavilion angle56.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557428154
Dimensions5.83 × 3.73 × 2.47 mm
L/W Ratio1.56
Girdle conditionPolished
Top View
5.83 mm3.73 mm0.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557428154
Side View
Table 69.0%Crown 47.3°Girdle: MED-STKPavilion 56.2°Culet: NDepth 66.3%

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: Oct 30
Current: $1,443 SGD|Low: $497 SGD|High: $2,392 SGD|Avg: $820 SGD|-4.5%
MOH London
Retailer 2
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Retailer 24
October 31, 2026
Retailer 20$497 SGD
Retailer 9$509 SGD
Retailer 10$511 SGD
Retailer 8$551 SGD
Retailer 6$573 SGD
Retailer 4$593 SGD
Retailer 7$593 SGD
Retailer 18$635 SGD
Retailer 5$642 SGD
Retailer 19$674 SGD
Retailer 11$690 SGD
Retailer 12$690 SGD
Retailer 14$690 SGD
Retailer 16$716 SGD
Retailer 23$749 SGD
Retailer 2$759 SGD
Retailer 17$762 SGD
Retailer 3$764 SGD
Retailer 24$818 SGD
Retailer 15$908 SGD
Retailer 13$917 SGD
Retailer 21$939 SGD
MOH London$1,443 SGD
Retailer 22$2,332 SGD

21 data points across 24 retailers

25 retailers$497 SGD to $1,443 SGD

A
Cheapest Retailer
-
$497 SGD
$389 USD
A
Retailer 2
-
$509 SGD
$398 USD
View
Final sale: no returns
A
Retailer 3
-
$511 SGD
$400 USD
View
A
Retailer 4
-
$551 SGD
$431 USD
View
A
Retailer 5
-
$573 SGD
HK$3,500 HKD
View
A
Retailer 6
-
$593 SGD
$464 USD
View
A
Retailer 7
-
$593 SGD
$464 USD
View
A
Retailer 8
-
$635 SGD
$497 USD
View
A
Retailer 9
-
$642 SGD
$502 USD
View
B+
Retailer 10
-
$674 SGD
$527 USD
View
B+
Retailer 11
-
$690 SGD
$540 USD
View
B+
Retailer 12
-
$690 SGD
$540 USD
View
B+
Retailer 13
-
$690 SGD
$540 USD
View
B+
Retailer 14
-
$716 SGD
$560 USD
View
B+
Retailer 15
-
$749 SGD
£461 GBP
View
B+
Retailer 16
-
$759 SGD
£467 GBP
View
B+
Retailer 17
-
$762 SGD
£470 GBP
View
B+
Retailer 18
-
$764 SGD
$598 USD
View
B+
Retailer 19
-
$818 SGD
$640 USD
View
B
Retailer 20
-
$908 SGD
$710 USD
View
B+
Retailer 21
-
$917 SGD
€683 EUR
View
B+
Retailer 22
-
$939 SGD
ZAR 11,865 ZAR
View
Retailer 23
-
$974 SGD
A$1,172 AUD
View
Price last confirmed 27 days ago
Most Expensive
B
MOH London
2072DB740 · Oct 26
$1,443 SGD
£889 GBP
View
23 more retailers have this diamond
Prices start from $497 SGDSave up to $946 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
0.51ct Emerald
$497 SGD